xfs_repair: don't recreate /quota metadir if there are no quota inodes

xfs_repair: don't recreate /quota metadir if there are no quota inodes

If repair does not discover even a single quota file, then don't have it
try to create a /quota metadir to hold them.  This avoids pointless
repair failures on quota-less filesystems that are nearly full.

Found via generic/558 on a zoned=1 filesystem.

Cc: linux-xfs@vger.kernel.org # v6.13.0
Fixes: b790ab2a303d58 ("xfs_repair: support quota inodes in the metadata directory")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Andrey Albershteyn <aalbersh@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>