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

Change-Id: I93e776acb0a97d95d4df55721b283da7ac4494ac
diff --git a/protos/voltha_protos/openolt.proto b/protos/voltha_protos/openolt.proto
index 8fd5789..b2454b7 100644
--- a/protos/voltha_protos/openolt.proto
+++ b/protos/voltha_protos/openolt.proto
@@ -14,7 +14,7 @@
 
 syntax = "proto3";
 
-option go_package = "github.com/opencord/voltha-protos/go/openolt";
+option go_package = "github.com/opencord/voltha-protos/v2/go/openolt";
 
 package openolt;
 import "google/api/annotations.proto";