ceph-volume: decrease number of `pvs` calls in `lvm list`

ceph-volume: decrease number of `pvs` calls in `lvm list`

current implementation of `List.create_report()` implies a lot of calls
to `pvs` process. This could be avoided.

current implementation:
```
>>> import timeit
>>> from ceph_volume.devices.lvm.listing import List
>>> timeit.timeit(List([]).main, number=1000)

...

93.03700458299136
```

new implementation:

```
>>> import timeit
>>> from ceph_volume.devices.lvm.listing import List
>>> timeit.timeit(List([]).main, number=1000)

...

62.16391600697534
```

In this example, it improves performance by ~30%

Fixes: https://tracker.ceph.com/issues/56127
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 1a38ea3b96dbe8fd2f2fca8ee9a501ef1423027f)