VOL-2258 Release using voltha-lib-go 2.2.16

Change-Id: Ifdefbd1dbb879117884b24d71c9856e60a7cd31a
diff --git a/VERSION b/VERSION
index 97102b4..b1b25a5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.2-dev
+2.2.2