Glance should not reference Cinder v1
Glance should not reference Cinder v1

Cinder v1 was removed over a year ago.  Change the cinder template
URLs devstack defines in the glance-api.conf to use cinder v3
instead.

Change-Id: I4a68dc0b53631be0708e7411c37619dd6dfd4fa6

nawawi/openstack,dtroyer/devstack,dtroyer/devstack,nawawi/openstack,openstack-dev/devstack,openstack-dev/devstack