Modifying git review file adding default branch

Change-Id: I19dd04992e65f09536e079ddc6838dc0cac8b976
diff --git a/.gitreview b/.gitreview
index 60d65aa..d1f745c 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,3 +3,4 @@
 port=29418
 project=pod-configs.git
 defaultremote=origin
+defaultbranch=cord-3.0