VOL-5161 - Create beta release branch/tag for pod-configs

.gitreview
----------
  o Assign defaultbranch=voltha-2.12 for rebase/merge

Change-Id: I9822f04787978f160b39f0dac753eb5a3f27077c
diff --git a/.gitreview b/.gitreview
index 60d65aa..bd7b8d6 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,3 +3,4 @@
 port=29418
 project=pod-configs.git
 defaultremote=origin
+defaultbranch=voltha-2.12
\ No newline at end of file