VOL-1381 and VOL-1091 Add feature to collect PMmetrics of OLT, this will collect Tx and Rx and posts to kafka. This commit is also related to changes of commit 72b25abd4e804596413558ef10f098c2262dd65d voltha-go
Updated review comments

Updated with code optimization
Updated with dep files
Updated fix for sanity test
Updated with gomod changes

Change-Id: I899e855812a6eda812c64664a9154321cdb16876
diff --git a/vendor/github.com/opencord/voltha-lib-go/v2/pkg/adapters/adapterif/core_proxy_if.go b/vendor/github.com/opencord/voltha-lib-go/v2/pkg/adapters/adapterif/core_proxy_if.go
index 196f356..615452c 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v2/pkg/adapters/adapterif/core_proxy_if.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v2/pkg/adapters/adapterif/core_proxy_if.go
@@ -37,6 +37,7 @@
 	DeviceStateUpdate(ctx context.Context, deviceID string,
 		connStatus voltha.ConnectStatus_ConnectStatus, operStatus voltha.OperStatus_OperStatus) error
 
+	DevicePMConfigUpdate(ctx context.Context, pmConfigs *voltha.PmConfigs) error
 	ChildDeviceDetected(ctx context.Context, parentDeviceID string, parentPortNo int,
 		childDeviceType string, channelID int, vendorID string, serialNumber string, onuID int64) (*voltha.Device, error)