Updated cinder tables for the config-ref

We missed some updates with the late switch to oslo.messaging in cinder.
This patch imports the updated defaults and help strings.

Change-Id: I8b01227ee536ac28f0efb84c02e10239cdaf937e
Backport: icehouse
(cherry picked from commit 4d83b36bd19f63ca0ca6b9b8f97b9face3e10128)