Host level replication capability was added to the NetApp
cDOT Block and File drivers through
I87b92e76d0d5022e9be610b9e237b89417309c05.
However, volumes created on these backends did not
have the 'replication_status' field set.
Fix this by returning model updates to the volume manager.
Change-Id: If1d24e87413e2c829bc5a701293fb3be67412155
Closes-Bug: #1622057
