Close-Bug: #1395949. This fix is required for https://bugs.launchpad.net/juniperopenstack/+bug/1395949. contrail user needs sudo for running the command to restart supervisor-config

Change-Id: I206521923a003dcd307624394d567ee01632f707
Merge "Close-Bug: #1395949. This fix is required for https://bugs.launchpad.net/juniperopenstack/+bug/1395949. contrail user needs sudo for running the command to restart supervisor-config" into R2.0