VOL-2098 Monitor Kafka service readiness

Change-Id: Ifb9658c8ea4f03374fe2921846149b1e55237327
diff --git a/ro_core/core/core.go b/ro_core/core/core.go
index 45bbde2..4baa198 100644
--- a/ro_core/core/core.go
+++ b/ro_core/core/core.go
@@ -107,7 +107,7 @@
 // and starts the server
 func (core *Core) startGRPCService(ctx context.Context) {
 	//	create an insecure gserver server
-	core.grpcServer = grpcserver.NewGrpcServer(core.config.GrpcHost, core.config.GrpcPort, nil, false)
+	core.grpcServer = grpcserver.NewGrpcServer(core.config.GrpcHost, core.config.GrpcPort, nil, false, nil)
 	log.Info("grpc-server-created")
 
 	core.grpcNBIAPIHandler = NewAPIHandler(core.genericMgr, core.deviceMgr, core.logicalDeviceMgr)