Create JJB branches

.gitreview
==========
  o branch=voltha-2.10 created.
  o Added .gitreview to specify target release branch for merge.
  o Note: line order was altered by a branch creation script.
    Legacy/master branch values are explicitly removed then added with current branch name.

Change-Id: I3ac229111b5082cf2c43407b87855397f1de74c0
diff --git a/.gitreview b/.gitreview
index 923de6d..871b860 100644
--- a/.gitreview
+++ b/.gitreview
@@ -1,5 +1,6 @@
 [gerrit]
 host=gerrit.opencord.org
 port=29418
+defaultremote=origin
 project=ci-management.git
-defaultremote=origin
\ No newline at end of file
+defaultbranch=voltha-2.10