[VOL-5247] repo:voltha-go release patching prep

.gitreview
----------
  o Fix defaultbranch=, value somehow morphed into 'origin'

Change-Id: I524da2d800acda43f69c783f0031a90adf80c430
diff --git a/VERSION b/VERSION
index 444877d..65afb3b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.5.3
+3.5.4