[VOL-4514]  Addressing device reconciliation failure

This commit consists of augmention the current GetHeathStatus()
API on the grpc server with the grpc client information.  This
provides the grpc server with more insights of the grpc client
connection status.  This is useful for a server to know whether it
is more likely to receive a response following a request from a
remote server, represented by the grpc client(s).  For now this is
used by the openonu adapter to figure out when it can send an
OMCI request to the openolt adapter following a restart of the
onu adapter.

Change-Id: I0c117c0002b83606b95d7269e6f53d21941e4ba5
diff --git a/go/common/common.pb.go b/go/common/common.pb.go
index 952a43c..87d3dca 100644
--- a/go/common/common.pb.go
+++ b/go/common/common.pb.go
@@ -80,7 +80,7 @@
 }
 
 func (AdminState_Types) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{2, 0}
+	return fileDescriptor_c2e3fd231961e826, []int{3, 0}
 }
 
 // Operational Status
@@ -132,7 +132,7 @@
 }
 
 func (OperStatus_Types) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{3, 0}
+	return fileDescriptor_c2e3fd231961e826, []int{4, 0}
 }
 
 // Connectivity Status
@@ -164,7 +164,7 @@
 }
 
 func (ConnectStatus_Types) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{4, 0}
+	return fileDescriptor_c2e3fd231961e826, []int{5, 0}
 }
 
 type OperationResp_OperationReturnCode int32
@@ -195,7 +195,7 @@
 }
 
 func (OperationResp_OperationReturnCode) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{5, 0}
+	return fileDescriptor_c2e3fd231961e826, []int{6, 0}
 }
 
 // Convey a resource identifier
@@ -278,6 +278,65 @@
 	return nil
 }
 
+type Connection struct {
+	// endpoint is the endpoint sending the request
+	Endpoint string `protobuf:"bytes,1,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
+	// contextInfo represents additional contextual information
+	ContextInfo string `protobuf:"bytes,2,opt,name=contextInfo,proto3" json:"contextInfo,omitempty"`
+	// keep_alive_interval is used to indicate to the remote endpoint how often it
+	// will get a keep alive notification
+	KeepAliveInterval    int64    `protobuf:"varint,3,opt,name=keep_alive_interval,json=keepAliveInterval,proto3" json:"keep_alive_interval,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Connection) Reset()         { *m = Connection{} }
+func (m *Connection) String() string { return proto.CompactTextString(m) }
+func (*Connection) ProtoMessage()    {}
+func (*Connection) Descriptor() ([]byte, []int) {
+	return fileDescriptor_c2e3fd231961e826, []int{2}
+}
+
+func (m *Connection) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Connection.Unmarshal(m, b)
+}
+func (m *Connection) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Connection.Marshal(b, m, deterministic)
+}
+func (m *Connection) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Connection.Merge(m, src)
+}
+func (m *Connection) XXX_Size() int {
+	return xxx_messageInfo_Connection.Size(m)
+}
+func (m *Connection) XXX_DiscardUnknown() {
+	xxx_messageInfo_Connection.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Connection proto.InternalMessageInfo
+
+func (m *Connection) GetEndpoint() string {
+	if m != nil {
+		return m.Endpoint
+	}
+	return ""
+}
+
+func (m *Connection) GetContextInfo() string {
+	if m != nil {
+		return m.ContextInfo
+	}
+	return ""
+}
+
+func (m *Connection) GetKeepAliveInterval() int64 {
+	if m != nil {
+		return m.KeepAliveInterval
+	}
+	return 0
+}
+
 type AdminState struct {
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -288,7 +347,7 @@
 func (m *AdminState) String() string { return proto.CompactTextString(m) }
 func (*AdminState) ProtoMessage()    {}
 func (*AdminState) Descriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{2}
+	return fileDescriptor_c2e3fd231961e826, []int{3}
 }
 
 func (m *AdminState) XXX_Unmarshal(b []byte) error {
@@ -319,7 +378,7 @@
 func (m *OperStatus) String() string { return proto.CompactTextString(m) }
 func (*OperStatus) ProtoMessage()    {}
 func (*OperStatus) Descriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{3}
+	return fileDescriptor_c2e3fd231961e826, []int{4}
 }
 
 func (m *OperStatus) XXX_Unmarshal(b []byte) error {
@@ -350,7 +409,7 @@
 func (m *ConnectStatus) String() string { return proto.CompactTextString(m) }
 func (*ConnectStatus) ProtoMessage()    {}
 func (*ConnectStatus) Descriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{4}
+	return fileDescriptor_c2e3fd231961e826, []int{5}
 }
 
 func (m *ConnectStatus) XXX_Unmarshal(b []byte) error {
@@ -385,7 +444,7 @@
 func (m *OperationResp) String() string { return proto.CompactTextString(m) }
 func (*OperationResp) ProtoMessage()    {}
 func (*OperationResp) Descriptor() ([]byte, []int) {
-	return fileDescriptor_c2e3fd231961e826, []int{5}
+	return fileDescriptor_c2e3fd231961e826, []int{6}
 }
 
 func (m *OperationResp) XXX_Unmarshal(b []byte) error {
@@ -428,6 +487,7 @@
 	proto.RegisterEnum("common.OperationResp_OperationReturnCode", OperationResp_OperationReturnCode_name, OperationResp_OperationReturnCode_value)
 	proto.RegisterType((*ID)(nil), "common.ID")
 	proto.RegisterType((*IDs)(nil), "common.IDs")
+	proto.RegisterType((*Connection)(nil), "common.Connection")
 	proto.RegisterType((*AdminState)(nil), "common.AdminState")
 	proto.RegisterType((*OperStatus)(nil), "common.OperStatus")
 	proto.RegisterType((*ConnectStatus)(nil), "common.ConnectStatus")
@@ -437,37 +497,41 @@
 func init() { proto.RegisterFile("voltha_protos/common.proto", fileDescriptor_c2e3fd231961e826) }
 
 var fileDescriptor_c2e3fd231961e826 = []byte{
-	// 506 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x52, 0xcd, 0x6e, 0xda, 0x30,
-	0x1c, 0x6f, 0x42, 0x4b, 0xd7, 0x3f, 0x25, 0x64, 0xee, 0x3a, 0xb1, 0x69, 0x07, 0x94, 0x4b, 0xbb,
-	0x49, 0x03, 0xa9, 0xdb, 0x8e, 0x3b, 0xa4, 0x89, 0xc7, 0xac, 0x52, 0x3b, 0x72, 0x12, 0x2a, 0xf5,
-	0x12, 0xa5, 0xc4, 0x85, 0x48, 0x25, 0x8e, 0x88, 0xa9, 0xc4, 0x75, 0x6f, 0xb0, 0x57, 0xdd, 0x13,
-	0x4c, 0x0e, 0x54, 0x14, 0x89, 0x9b, 0x7f, 0x1f, 0xfe, 0x7f, 0xc3, 0xc7, 0x67, 0xf9, 0xa4, 0x66,
-	0x69, 0x52, 0x2e, 0xa4, 0x92, 0xd5, 0x60, 0x22, 0xe7, 0x73, 0x59, 0xf4, 0x6b, 0x84, 0x9a, 0x6b,
-	0xe4, 0xbc, 0x03, 0x93, 0xf8, 0xc8, 0x02, 0x33, 0xcf, 0xba, 0x46, 0xcf, 0xb8, 0x3c, 0xe1, 0x66,
-	0x9e, 0x39, 0x17, 0xd0, 0x20, 0x7e, 0x85, 0x7a, 0x70, 0x94, 0x2b, 0x31, 0xaf, 0xba, 0x46, 0xaf,
-	0x71, 0xd9, 0xba, 0x82, 0xfe, 0x26, 0x04, 0xf1, 0xf9, 0x5a, 0x70, 0x66, 0x00, 0x6e, 0x36, 0xcf,
-	0x8b, 0x50, 0xa5, 0x4a, 0x38, 0xf7, 0x70, 0x14, 0xad, 0x4a, 0x51, 0xa1, 0x16, 0x1c, 0xc7, 0xf4,
-	0x86, 0xb2, 0x3b, 0x6a, 0x1f, 0x20, 0x04, 0x56, 0xc0, 0x71, 0xc0, 0xd9, 0x98, 0x84, 0x84, 0x51,
-	0xec, 0xdb, 0x86, 0x36, 0x60, 0xea, 0x5e, 0x8f, 0xb0, 0x6f, 0x9b, 0xe8, 0x14, 0xde, 0xf8, 0x24,
-	0x5c, 0xa3, 0x06, 0x3a, 0x87, 0xb7, 0x3e, 0xbb, 0xa3, 0x23, 0xe6, 0xfa, 0x84, 0x0e, 0x13, 0x72,
-	0xeb, 0x0e, 0xb1, 0x7d, 0xe8, 0xfc, 0x35, 0x00, 0x58, 0x29, 0x16, 0x3a, 0xd3, 0xb2, 0x72, 0xfe,
-	0x18, 0x7b, 0x73, 0x59, 0x00, 0x3e, 0x09, 0x3d, 0x36, 0xc6, 0xbc, 0xce, 0x63, 0x01, 0xb8, 0x5e,
-	0x44, 0xc6, 0x6e, 0x44, 0xe8, 0xd0, 0x36, 0xb5, 0x39, 0xc2, 0x61, 0x0d, 0x1a, 0x08, 0xa0, 0x59,
-	0x8b, 0xd8, 0x3e, 0xd4, 0xef, 0x5f, 0x2e, 0xd1, 0x15, 0x1c, 0xa1, 0x0e, 0xb4, 0x38, 0xf6, 0x18,
-	0xf5, 0xc8, 0x48, 0x1b, 0x9b, 0xe8, 0x3d, 0xa0, 0x57, 0x44, 0xb2, 0x31, 0x1e, 0x3b, 0x18, 0xda,
-	0x9e, 0x2c, 0x0a, 0x31, 0x51, 0x9b, 0xaa, 0xbe, 0xef, 0x2d, 0xaa, 0x03, 0xad, 0x98, 0x72, 0xec,
-	0x7a, 0xbf, 0x75, 0x8f, 0xb6, 0x81, 0xda, 0x70, 0xb2, 0x85, 0xa6, 0xf3, 0xcf, 0x80, 0xb6, 0x6e,
-	0x2d, 0x55, 0xb9, 0x2c, 0xb8, 0xa8, 0x4a, 0xf4, 0x13, 0x0e, 0x27, 0x32, 0x13, 0xf5, 0x46, 0xac,
-	0xab, 0xcf, 0x2f, 0x73, 0xdf, 0x31, 0xbd, 0x46, 0x6a, 0xb9, 0x28, 0x3c, 0x99, 0x09, 0x5e, 0x7f,
-	0x43, 0x17, 0xd0, 0x49, 0xb3, 0x2c, 0xd7, 0x5a, 0xfa, 0x94, 0xe4, 0xc5, 0xa3, 0xec, 0x9a, 0xf5,
-	0x6e, 0xad, 0x2d, 0x4d, 0x8a, 0x47, 0xe9, 0xac, 0xe0, 0x6c, 0x4f, 0x14, 0xbd, 0x02, 0x16, 0x60,
-	0xee, 0x46, 0x84, 0xd1, 0x24, 0x8c, 0x3d, 0x0f, 0x87, 0xa1, 0x7d, 0xb0, 0x4b, 0xeb, 0x21, 0xc4,
-	0x5c, 0x77, 0xf3, 0x01, 0xce, 0xb7, 0x74, 0x4c, 0xc3, 0x38, 0x08, 0x18, 0x8f, 0xea, 0xcd, 0xee,
-	0x48, 0x84, 0x26, 0x01, 0x67, 0x43, 0xae, 0x83, 0x35, 0xbe, 0x7c, 0x82, 0xd3, 0x48, 0x54, 0xea,
-	0x56, 0x66, 0xe2, 0x46, 0xac, 0x2a, 0x7d, 0x04, 0x69, 0x99, 0x27, 0x4a, 0x54, 0xca, 0x3e, 0xb8,
-	0xc6, 0x70, 0x26, 0x17, 0xd3, 0xbe, 0x2c, 0x45, 0x31, 0x91, 0x8b, 0xac, 0xbf, 0xbe, 0xe4, 0xfb,
-	0xfe, 0x34, 0x57, 0xb3, 0xe5, 0x83, 0x9e, 0xc7, 0xe0, 0x45, 0x1b, 0xac, 0xb5, 0xaf, 0x9b, 0x2b,
-	0x7f, 0xfe, 0x31, 0x98, 0xca, 0xcd, 0xad, 0x3f, 0x34, 0x6b, 0xf2, 0xdb, 0xff, 0x00, 0x00, 0x00,
-	0xff, 0xff, 0x6b, 0x71, 0x98, 0xbd, 0x0a, 0x03, 0x00, 0x00,
+	// 570 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x53, 0x5d, 0x4f, 0xdb, 0x30,
+	0x14, 0x25, 0x09, 0x14, 0xb8, 0x85, 0x12, 0xcc, 0x98, 0x3a, 0xb4, 0x87, 0x2a, 0x2f, 0xb0, 0x49,
+	0x6b, 0x25, 0xb6, 0x3d, 0xee, 0x21, 0x24, 0x5e, 0x67, 0x01, 0x4e, 0xe5, 0xa4, 0x20, 0xf1, 0x12,
+	0x85, 0xc6, 0x03, 0x6b, 0xad, 0x1d, 0x25, 0xa6, 0x1a, 0x7b, 0xdc, 0x3f, 0xd8, 0x5f, 0xdd, 0x2f,
+	0x98, 0x9c, 0x86, 0x15, 0xa4, 0xbe, 0xe5, 0x9c, 0x73, 0x73, 0xbf, 0x8e, 0x2f, 0x1c, 0xcd, 0xd5,
+	0x54, 0xdf, 0x67, 0x69, 0x51, 0x2a, 0xad, 0xaa, 0xc1, 0x44, 0xcd, 0x66, 0x4a, 0xf6, 0x6b, 0x84,
+	0x5a, 0x0b, 0xe4, 0xbd, 0x02, 0x9b, 0x84, 0xa8, 0x03, 0xb6, 0xc8, 0xbb, 0x56, 0xcf, 0x3a, 0xd9,
+	0x66, 0xb6, 0xc8, 0xbd, 0x63, 0x70, 0x48, 0x58, 0xa1, 0x1e, 0x6c, 0x08, 0xcd, 0x67, 0x55, 0xd7,
+	0xea, 0x39, 0x27, 0xed, 0x53, 0xe8, 0x37, 0x29, 0x48, 0xc8, 0x16, 0x82, 0xf7, 0x0b, 0x20, 0x50,
+	0x52, 0xf2, 0x89, 0x16, 0x4a, 0xa2, 0x23, 0xd8, 0xe2, 0x32, 0x2f, 0x94, 0x90, 0xba, 0x49, 0xf6,
+	0x1f, 0xa3, 0x1e, 0xb4, 0x27, 0x4a, 0x6a, 0xfe, 0x53, 0x13, 0xf9, 0x5d, 0x75, 0xed, 0x5a, 0x7e,
+	0x4e, 0xa1, 0x3e, 0x1c, 0xfc, 0xe0, 0xbc, 0x48, 0xb3, 0xa9, 0x98, 0xf3, 0x54, 0x48, 0xcd, 0xcb,
+	0x79, 0x36, 0xed, 0x3a, 0x3d, 0xeb, 0xc4, 0x61, 0xfb, 0x46, 0xf2, 0x8d, 0x42, 0x1a, 0xc1, 0xbb,
+	0x07, 0xf0, 0xf3, 0x99, 0x90, 0xb1, 0xce, 0x34, 0xf7, 0x6e, 0x60, 0x23, 0x79, 0x2c, 0x78, 0x85,
+	0xda, 0xb0, 0x39, 0xa6, 0xe7, 0x34, 0xba, 0xa6, 0xee, 0x1a, 0x42, 0xd0, 0x19, 0x31, 0x3c, 0x62,
+	0xd1, 0x15, 0x89, 0x49, 0x44, 0x71, 0xe8, 0x5a, 0x26, 0x00, 0x53, 0xff, 0xec, 0x02, 0x87, 0xae,
+	0x8d, 0x76, 0x60, 0x2b, 0x24, 0xf1, 0x02, 0x39, 0xe8, 0x10, 0xf6, 0xc3, 0xe8, 0x9a, 0x5e, 0x44,
+	0x7e, 0x48, 0xe8, 0x30, 0x25, 0x97, 0xfe, 0x10, 0xbb, 0xeb, 0xde, 0x1f, 0x0b, 0x20, 0x2a, 0x78,
+	0x69, 0x2a, 0x3d, 0x54, 0xde, 0x6f, 0x6b, 0x65, 0xad, 0x0e, 0x40, 0x48, 0xe2, 0x20, 0xba, 0xc2,
+	0xac, 0xae, 0xd3, 0x01, 0xf0, 0x83, 0x84, 0x5c, 0xf9, 0x09, 0xa1, 0x43, 0xd7, 0x36, 0xc1, 0x09,
+	0x8e, 0x6b, 0xe0, 0x20, 0x80, 0x56, 0x2d, 0x62, 0x77, 0xdd, 0x7c, 0x7f, 0xf5, 0x89, 0xe9, 0x60,
+	0x03, 0xed, 0x41, 0x9b, 0xe1, 0x20, 0xa2, 0x01, 0xb9, 0x30, 0x81, 0x2d, 0xf4, 0x1a, 0xd0, 0x33,
+	0x22, 0x6d, 0x02, 0x37, 0x3d, 0x0c, 0xbb, 0xcd, 0xe6, 0x9b, 0xae, 0x3e, 0xad, 0x6c, 0x6a, 0x0f,
+	0xda, 0x63, 0xca, 0xb0, 0x1f, 0x7c, 0x33, 0x33, 0xba, 0x16, 0xda, 0x85, 0xed, 0x25, 0xb4, 0xbd,
+	0xbf, 0x16, 0xec, 0x9a, 0xd1, 0x32, 0x63, 0x20, 0xe3, 0x55, 0x81, 0xbe, 0xc0, 0xfa, 0x44, 0xe5,
+	0xbc, 0x36, 0xb0, 0x73, 0xfa, 0xee, 0xc9, 0xf3, 0x17, 0x41, 0xcf, 0x91, 0x7e, 0x28, 0x65, 0xa0,
+	0x72, 0xce, 0xea, 0xdf, 0xd0, 0x31, 0xec, 0x65, 0x79, 0x2e, 0x8c, 0x96, 0x4d, 0x53, 0xb1, 0xf4,
+	0xba, 0xb3, 0xa4, 0x8d, 0xdd, 0xde, 0x23, 0x1c, 0xac, 0xc8, 0x62, 0x2c, 0x88, 0x46, 0x98, 0xf9,
+	0x09, 0x89, 0x68, 0x1a, 0x8f, 0x83, 0x00, 0xc7, 0xb1, 0xbb, 0xf6, 0x92, 0x36, 0x4b, 0x18, 0x33,
+	0x33, 0xcd, 0x1b, 0x38, 0x5c, 0xd2, 0x63, 0x1a, 0x8f, 0x47, 0xa3, 0x88, 0x25, 0xb5, 0xb3, 0x2f,
+	0x24, 0x42, 0xd3, 0x11, 0x8b, 0x86, 0xcc, 0x24, 0x73, 0xde, 0xbf, 0x85, 0x9d, 0x84, 0x57, 0xfa,
+	0x52, 0xe5, 0xfc, 0x9c, 0x3f, 0x56, 0xe6, 0x11, 0x64, 0x85, 0x48, 0x35, 0xaf, 0xb4, 0xbb, 0x76,
+	0x86, 0xe1, 0x40, 0x95, 0x77, 0x7d, 0x55, 0x70, 0x39, 0x51, 0x65, 0xde, 0x5f, 0x5c, 0xd1, 0x4d,
+	0xff, 0x4e, 0xe8, 0xfb, 0x87, 0x5b, 0xb3, 0x8f, 0xc1, 0x93, 0x36, 0x58, 0x68, 0x1f, 0x9a, 0x0b,
+	0x9b, 0x7f, 0x1e, 0xdc, 0xa9, 0xe6, 0xce, 0x6e, 0x5b, 0x35, 0xf9, 0xf1, 0x5f, 0x00, 0x00, 0x00,
+	0xff, 0xff, 0x62, 0x34, 0x9d, 0xbf, 0x86, 0x03, 0x00, 0x00,
 }