A long-standing issue that was only solved via a documentation note. Now,
during the prepare pod instantiation, we check for the presence of the
lvm binary on the host. Success will indicate that we can bootstrap
OSDs where failure will refuse to prepare the OSD.
Closes: https://github.com/rook/rook/issues/5627
Signed-off-by: Sébastien Han <seb@redhat.com>