Every service except cinder-api was looking for the file
'/opt/kolla/cinder/cinder-<service>.conf' when the config file in place was named
'cinder.conf'. Change the rest of the services to look for cinder.conf or
the config file will never be copied over to into '/etc/cinder/'.
Change-Id: I1cd59f1da09e6f3bc7e7b3a4f45f9da2b8247479
Closes-Bug: #1481928
Closes-Bug: #1484248
759cc41647