[VOL-4289]  Proto changes for gRPC migration

Change-Id: I317a0a865ccf78d0c37aa229c50d293a3f66c8bb
diff --git a/protos/voltha_protos/extensions.proto b/protos/voltha_protos/extensions.proto
old mode 100644
new mode 100755
index d8441fb..5331b26
--- a/protos/voltha_protos/extensions.proto
+++ b/protos/voltha_protos/extensions.proto
@@ -14,7 +14,7 @@
 
 syntax = "proto3";
 
-option go_package = "github.com/opencord/voltha-protos/v4/go/extension";
+option go_package = "github.com/opencord/voltha-protos/v5/go/extension";
 option java_package = "org.opencord.voltha.extension";
 
 package extension;