Updating versions used in voltha-2.4

Change-Id: Iedf72faa90512197c5ac31101401581b5a8d21a9
diff --git a/VERSION b/VERSION
index 005119b..8e8299d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4.1
+2.4.2