Enable haproxy for keystone on controller if SSL enabled
Enable haproxy for keystone on controller if SSL enabled

There is only 1 DNS entry created on the public network, so
the public VIP must serve keystone for SSL enabled deployment.

Change-Id: Iaaba02f55e2501b3e8b45b3b330d05f7b007af03
Closes-Bug: #1484465

stackforge/fuel-plugin-detach-keystone