Updated openstack/openstack
Project: openstack/cinder  0c21ce73daabba5cbd8ad3fb5a318a3dd2b40a2f
null
Fix the wrong verification for 'readonly'

A mistake verification for 'readonly', fix it, and add some tests.

Change-Id: Iea20245eef2e884cf4c0d8e62c2da4f1cd967106
Closes-Bug: #1255802