VOL-1497 : Add more control to kv/memory access

- Added kv locking mechanism (etcd only)
- (watch) control path access whenever possible
- (watch) use a transaction for updates and merge with memory
- cleaned up vendoring
- misc changes to fix exceptions found along the way

Amendments:

- Copyright header got removed in auto-generated file
- Changed default locking to false for KV list operation
- Updated backend api to allow the passing of locking parameter

Change-Id: Ie1a55d3ca8b9d92ae71a85ce42bb22fcf1419e2c
diff --git a/vendor/golang.org/x/sys/unix/ztypes_linux_mips64le.go b/vendor/golang.org/x/sys/unix/ztypes_linux_mips64le.go
index 2fb7498..5fb57ff 100644
--- a/vendor/golang.org/x/sys/unix/ztypes_linux_mips64le.go
+++ b/vendor/golang.org/x/sys/unix/ztypes_linux_mips64le.go
@@ -407,6 +407,11 @@
 	Total_retrans  uint32
 }
 
+type CanFilter struct {
+	Id   uint32
+	Mask uint32
+}
+
 const (
 	SizeofSockaddrInet4     = 0x10
 	SizeofSockaddrInet6     = 0x1c
@@ -436,6 +441,7 @@
 	SizeofICMPv6Filter      = 0x20
 	SizeofUcred             = 0xc
 	SizeofTCPInfo           = 0x68
+	SizeofCanFilter         = 0x8
 )
 
 const (
@@ -753,7 +759,30 @@
 	Val [16]uint64
 }
 
-const RNDGETENTCNT = 0x40045200
+type SignalfdSiginfo struct {
+	Signo     uint32
+	Errno     int32
+	Code      int32
+	Pid       uint32
+	Uid       uint32
+	Fd        int32
+	Tid       uint32
+	Band      uint32
+	Overrun   uint32
+	Trapno    uint32
+	Status    int32
+	Int       int32
+	Ptr       uint64
+	Utime     uint64
+	Stime     uint64
+	Addr      uint64
+	Addr_lsb  uint16
+	_         uint16
+	Syscall   int32
+	Call_addr uint64
+	Arch      uint32
+	_         [28]uint8
+}
 
 const PERF_IOC_FLAG_GROUP = 0x1
 
@@ -1958,6 +1987,10 @@
 	NCSI_CHANNEL_ATTR_VLAN_ID       = 0xa
 )
 
+type ScmTimestamping struct {
+	Ts [3]Timespec
+}
+
 const (
 	SOF_TIMESTAMPING_TX_HARDWARE  = 0x1
 	SOF_TIMESTAMPING_TX_SOFTWARE  = 0x2
@@ -1977,4 +2010,18 @@
 
 	SOF_TIMESTAMPING_LAST = 0x4000
 	SOF_TIMESTAMPING_MASK = 0x7fff
+
+	SCM_TSTAMP_SND   = 0x0
+	SCM_TSTAMP_SCHED = 0x1
+	SCM_TSTAMP_ACK   = 0x2
 )
+
+type SockExtendedErr struct {
+	Errno  uint32
+	Origin uint8
+	Type   uint8
+	Code   uint8
+	Pad    uint8
+	Info   uint32
+	Data   uint32
+}