gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/pkg/model/flow.go b/pkg/model/flow.go
index 39bb81b..8869c05 100644
--- a/pkg/model/flow.go
+++ b/pkg/model/flow.go
@@ -17,7 +17,7 @@
 
 import (
 	"fmt"
-	"github.com/opencord/voltha-protos/v4/go/openflow_13"
+	"github.com/opencord/voltha-protos/v5/go/openflow_13"
 )
 
 type FlowFieldFlag uint64