ceph: retry mirror status update in tests
ceph: retry mirror status update in tests

The TestCephBlockPoolController test is failing intermittently due
to a failure to update the rbd mirroring status on the pool CR.
Improve the test reliability by trying again several times if needed.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/nfs,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/rook,rook/rook