Fixup stats key for replication in init_host_with_pc
Fixup stats key for replication in init_host_with_pc

We were looking for just ‘replication’ in stats, but that key isn’t
used by anyone and would always be false. We instead want to be keying
off of just replication_enabled.

Change-Id: I8f4ef8d5c6594c1548958ebac2ff63b79429cd0b
Closes-Bug: #1556315

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