ceph-volume inventory: add option to filter unwanted devices

ceph-volume inventory: add option to filter unwanted devices

Some device we never want to pass to the batch subcommand. For now this
includes devices that have a partition or are mounted on the machine.
One goal is to filter the root device, so it is not included on a batch
command and thus would contribute to its implicit sizing calculation.

Signed-off-by: Jan Fajerski <jfajerski@suse.com>
(cherry picked from commit 7d168ad7bdbb6d6d5231a4ae540ab03040b49a38)
  - removed the lsmdisk import from src/ceph-volume/ceph_volume/util/device.py