[VOL-4292] OpenOLT Adapter changes for gRPC migration

Change-Id: I5af2125f2c2f53ffc78c474a94314bba408f8bae
diff --git a/cmd/openolt-adapter/common.go b/cmd/openolt-adapter/common.go
index 2176fa3..4011de4 100644
--- a/cmd/openolt-adapter/common.go
+++ b/cmd/openolt-adapter/common.go
@@ -18,7 +18,7 @@
 package main
 
 import (
-	"github.com/opencord/voltha-lib-go/v6/pkg/log"
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
 )
 
 var logger log.CLogger