qa/suites/rbd: add test to check rbd_support module recovery

qa/suites/rbd: add test to check rbd_support module recovery

... on repeated blocklisting of its client.

There were issues with rbd_support module not being able to recover
from its RADOS client being repeatedly blocklisted. This occured for
example in clusters with OSDs slow to process RBD requests while the
module's mirror_snapshot_scheduler was taking mirror snapshots by
requesting exclusive locks on the RBD images and workloads were running
on the snapshotted images via kernel clients.

Fixes: https://tracker.ceph.com/issues/62891
Signed-off-by: Ramana Raja <rraja@redhat.com>