Adding the ip of the glance host to the cinder config

Bootable volumes were only working if cinder and glance were on the same host
https://bugzilla.redhat.com/show_bug.cgi?id=888241

Change-Id: Ib1a50c70aabfff7bb7a13c2179ceec007f5dbb02
Merge "Adding the ip of the glance host to the cinder config"