VOL-2189 Release v2 protos repo and update to use v2 imports

Change-Id: I93e776acb0a97d95d4df55721b283da7ac4494ac
diff --git a/protos/voltha_protos/voltha.proto b/protos/voltha_protos/voltha.proto
index 5e45033..f560702 100644
--- a/protos/voltha_protos/voltha.proto
+++ b/protos/voltha_protos/voltha.proto
@@ -6,7 +6,7 @@
 
 syntax = "proto3";
 
-option go_package = "github.com/opencord/voltha-protos/go/voltha";
+option go_package = "github.com/opencord/voltha-protos/v2/go/voltha";
 
 package voltha;