xfs/252: requires fallocate support for preallocation

xfs/252 has a few feature tests, but misses checking for preallocation
support.  Because of that it will fail instead of not being run for
and XFS file system in always COW mode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
1 file changed