Cinder volume service is not managed by Pacemaker on BlockStorage

Cinder volume service is not managed by Pacemaker on BlockStorage

We do not want cinder-volume to be managed by Pacemaker on
BlockStorage nodes, where Pacemaker is not running at all.

This change adds a new BlockStorageCinderVolume service name
which can (and is, by default) mapped to the non Pacemaker
implementation of the service.

The error was:
Could not find dependency Exec[wait-for-settle] for
Pacemaker::Resource::Systemd[openstack-cinder-volume]

Also moves cinder::host setting into the Pacemaker specific service
definition because we only want to set a shared host= string when
the service is managed by Pacemaker.

Closes-Bug: #1628912
Change-Id: I2f7e82db4fdfd5f161e44d65d17893c3e19a89c9