xfs/521: use _try_scratch_mount instead of _scratch_mount

Here will check the return code of mount option. So update it
to use _try_scratch_mount.

Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
1 file changed