Moving BBSim to the latest protos

Change-Id: I797c3b3b6d964110b96f9636f941082ed14ad03d
diff --git a/internal/common/helpers.go b/internal/common/helpers.go
index 6ba022f..4e1997b 100644
--- a/internal/common/helpers.go
+++ b/internal/common/helpers.go
@@ -17,7 +17,7 @@
 package common
 
 import (
-	"github.com/opencord/voltha-protos/go/openolt"
+	"github.com/opencord/voltha-protos/v2/go/openolt"
 	"strconv"
 )