* Use 'xfs_info' to query fs size, that doesn't always require the device be
mounted. Although still query mountpoint first for backward compatibility.
* Do not fail whith fstype=xfs and resizefs=yes if filesystem already fills
its underlying device.
* Include xfs in the tasks that test idempotency of resizefs option
* Add changelogs/fragments/1478-filesystem-fix-1457-resizefs-idempotency.yml
(cherry picked from commit aa95d8a5b7)
Co-authored-by: quidame <quidame@poivron.org>
