Fix for deploy bonding ha active backup

Add private network to bonding because private
network wasn't assigned to any interface so that 
we get 400 bad request trying to update network settings

Change-Id: I5d786e81ae5f7561d5218a77083f327149a902e4
Closes-Bug: #1323266
(cherry picked from commit 92146c22b30d1a6a98e8dc839e6bc66615cb13f8)