Merge pull request #30101 from rishabh-d-dave/cv-minor

ceph-volume: api/lvm: check if list of LVs is empty

Reviewed-by: Alfredo Deza <adeza@redhat.com>
Reviewed-by: Jan Fajerski <jfajerski@suse.com>

diff --cc src/ceph-volume/ceph_volume/api/lvm.py
Simple merge