Merge PR #36684 into master

* refs/pull/36684/head:
	qa/tasks/nfs: Test mounting of export created with nfs command
	qa/tasks/nfs: Add helper method to check nfs cluster status
	qa/tasks/nfs: Cleanup created filesystem
	qa/tasks/nfs: Remove unused port status function and 'stdin' keyword argument

Reviewed-by: Sebastian Wagner <swagner@suse.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>