[SEBA-837] Releasing BBSim 2.1.1

Change-Id: I0f2a0cf2140caf70b835fa180409a09423ebf883
diff --git a/.gitreview b/.gitreview
index 7d0589f..ff791f7 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,4 +3,4 @@
 port=29418
 project=voltha-bbsim.git
 defaultremote=origin
-
+defaultbranch=voltha-2.1