Merge pull request #50974 from mchangir/wip-59201-quincy

quincy: qa: add subvolume option flavors

Reviewed-by: Venky Shankar <vshankar@redhat.com>

diff --cc qa/tasks/ceph.py
Simple merge

diff --cc qa/tasks/cephfs/filesystem.py
Simple merge

diff --cc qa/tasks/cephfs/mount.py
Simple merge