Reset snapshot status available
Reset snapshot status available

This patch fix bug: After fail to revert volume to snapshot, the
snapshot status will be set to available. Depend on Line 1007,
Line 1012 should be fields.SnapshotStatus.AVAILABLE.

Change-Id: Ic6b03e6de3de4498dc63f9ab4f77ace025ff28c6

openstack/cinder,mahak/cinder,mahak/cinder,openstack/cinder