scott's grpc voltha upgrade

Change-Id: I8dc32ad3db916eed04d3d8a0cfddaa12cda8c532
diff --git a/kubernetes-configs/onlab-pod1.yml b/kubernetes-configs/onlab-pod1.yml
index 9a671b2..4fece5a 100644
--- a/kubernetes-configs/onlab-pod1.yml
+++ b/kubernetes-configs/onlab-pod1.yml
@@ -11,7 +11,7 @@
 netconfImage: 'voltha/voltha-netconf:latest'
 ofagentImage: 'voltha/voltha-ofagent:latest'
 vcliImage: 'voltha/voltha-cli:latest'
-vcoreImage: 'smbaker/voltha-voltha:latest'
+vcoreImage: 'smbaker/voltha-voltha:tid-grpc'
 
 att-workflow-driver:
   image: