The gotpl script that determines if a cinder backend is ceph-backed
is not properly handling additional backends that does not have the
driver "cinder.volume.drivers.rbd.RBDDriver". This patch set fixes
the gotpl so it no longer causes a rendering problem.
Change-Id: I902e82301019531832afebce7a1e2f0b28bac8f3
Signed-off-by: Tin Lam <tin@irrational.io>