When doing the clean-up of raw device OSDs, it was not taking metadata
and wal devices into account. This commit discover them via the output
of `ceph-volume raw list`, which is returning `device_db` and/or
`device_wal` if they are present.
After discovering the metadata and wal device it also clean them and
close the encrypted device if any.
Signed-off-by: Mathias Chapelain <mathias.chapelain@proton.ch>
(cherry picked from commit 52ca68d46e)