GPFS: Fix consistency group ERROR_CREATE status
GPFS: Fix consistency group ERROR_CREATE status

ERROR_CREATE is not a valid status, should just
be ERROR.

Closes-Bug: #1588382

Change-Id: Ic598dd209afa7ec17396eeb5ef8eafc2faa7759f

j-griffith/cinder,NetApp/cinder,ge0rgi/cinder,cloudbase/cinder,bswartz/cinder,Datera/cinder,eharney/cinder,openstack/cinder,phenoxim/cinder,j-griffith/cinder,Datera/cinder,mahak/cinder,eharney/cinder,Nexenta/cinder,openstack/cinder,Hybrid-Cloud/cinder,bswartz/cinder,Hybrid-Cloud/cinder,cloudbase/cinder,NetApp/cinder,phenoxim/cinder,Nexenta/cinder,mahak/cinder