[VOL-5056] - Build and release voltha-protos

VERSION
Makefile

test/pom.xml
------------
  o Update maven artifact dependencies

go/openolt/openolt.pb.go
go/voltha/device.pb.go
go/voltha/events.pb.go
------------------------
  o Run gofmt -s -w to cleanup sources.

Change-Id: Ib077ce75937e2da3f65e7617f70a68b7f15f3a12
diff --git a/VERSION b/VERSION
index 3191ed8..f13d194 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.4.6.1-dev
+5.4.7