Updating .gitreview

Change-Id: I5695407468167c359fe2d28a997ac7cf5beabb16
diff --git a/.gitreview b/.gitreview
index 328aec6..7e723b3 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,4 +3,4 @@
 port=29418
 project=onos.git
 defaultremote=origin
-defaultbranch=master
+defaultbranch=onos-1.7