xfs: xfs_qm_dquot_isolate needs locking annotations for sparse

To remove noise from the build.

Signed-off-by: Dave Chinner <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Signed-off-by: Dave Chinner <[e-mail]>

fs/xfs/xfs_qm.c

···
 	struct list_head	*item,
 	spinlock_t		*lru_lock,
 	void			*arg)
+		__releases(lru_lock) __acquires(lru_lock)
 {
 	struct xfs_dquot	*dqp = container_of(item,
 						struct xfs_dquot, q_lru);