VOL-1460 Updates to protos to match core and updates to go stubs.
Also added support to build with godeps.

Change-Id: I4b312a6dcf67e3a3f93f675da38da2ed5164e077
diff --git a/protos/voltha_protos/openflow_13.proto b/protos/voltha_protos/openflow_13.proto
index 5adfb72..890fc04 100644
--- a/protos/voltha_protos/openflow_13.proto
+++ b/protos/voltha_protos/openflow_13.proto
@@ -57,7 +57,7 @@
  */
 syntax = "proto3";
 
-option go_package = "github.com/opencord/voltha-go/protos/openflow_13";
+option go_package = "github.com/opencord/voltha-protos/go/openflow_13";
 
 package openflow_13;
 
@@ -2283,6 +2283,7 @@
 message FlowGroupChanges {
     FlowGroups to_add = 1;
     FlowGroups to_remove = 2;
+    FlowGroups to_update = 3;
 }
 
 message PacketIn {