VOL-4222: Bump to version 1.6.5 with updates to use latest voltha-lib-go

Change-Id: Id4da94e409f7c6eff39d9fab3dff8297369f22df
diff --git a/VERSION b/VERSION
index 9edc58b..9f05f9f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.6.4
+1.6.5