Naming the SEBA release, and adding defaultbranch as cord-7.0

Change-Id: I612281412a26c5e14ef033da272574eda42bff3e
diff --git a/.gitreview b/.gitreview
index d87e796..911d001 100644
--- a/.gitreview
+++ b/.gitreview
@@ -2,4 +2,5 @@
 host=gerrit.opencord.org
 port=29418
 project=docs.git
+defaultbranch=cord-7.0
 defaultremote=origin