Fix cinder error for deprecated Netapp drivers

We deprecated some NetApp drivers in
this release. This change fixes c-vol
breakdown in case of cinder configured for
deprecated drivers and helps
in upgrade scenarios between releases
by printing appropriate warning and
suggestion message for deprecated drivers.

bug 1217220

Change-Id: I533d42257d93f706303b475fb4f222adcc0df3ed
Merge "Fix cinder error for deprecated Netapp drivers"