Set usage of volume lvm in false for ceph tests

By default volume lvm is set in true, when
we use ceph for volumes in tests we update
volumes_ceph in true too that leads to
both object storage is enabled in tests
So add False value for volume lvm parameter
in tests for ceph

Change-Id: I20176ecee1d5ff5c38f7d74b536bc0d84c4e1fa3
Closes-Bug: #1281933