VOL-2788 update voltha-go to latest voltha-lib-go and release

Change-Id: I853955d5ad3d84bae8b7b52e676872171c9ffe67
diff --git a/VERSION b/VERSION
index ca2d639..3f684d2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.3.3-dev
+2.3.4