Bumping voltha-lib-go minor version

Change-Id: I1a4b7ca16e5feb64200b6668e5005c3aba5515aa
diff --git a/VERSION b/VERSION
index f15386a..6d7d659 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.2.10
+3.3.0-dev