Rename controller_admin_vip to controller_admin_host
Rename controller_admin_vip to controller_admin_host

Bring change of I53151d4f555d5d161a3e53ce5f022e3bf3b2ffbd into
puppet-tripleo.

Change-Id: I1227956a0389497eedc00e4ec817f52be608dc75
Related-Bug: #1643655

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo