Update default branch in common for master

Change-Id: I7ddce7f583575adc11db4f9cc102d474a827d488
Issue-ID: POLICY-2045
Signed-off-by: Jim Hahn <jrh3@att.com>
diff --git a/.gitreview b/.gitreview
index 4335fa4..b9c3d1f 100644
--- a/.gitreview
+++ b/.gitreview
@@ -2,3 +2,4 @@
 host=gerrit.onap.org
 port=29418
 project=policy/common.git
+defaultbranch=master