Use 'openstack' command to relace 'cinder' command
Use 'openstack' command to relace 'cinder' command

This patch use the ``openstack`` command-line client command to replace
cinder commands as possible as it is implemented.

Implements: blueprint use-openstack-command
Change-Id: I1a3ca6fb5f60fbc113a8a1173f0cee0e636be75c

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals