block: handle pi_tuple_size in queue_limits_stack_integrity

queue_limits_stack_integrity needs to handle the new pi_tuple_size field,
otherwise stacking PI-capable devices will always fail.

Fixes: 76e45252 ("block: introduce pi_tuple_size field in blk_integrity")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20250818045456.1482889-2-hch@lst.de


Signed-off-by: Jens Axboe <axboe@kernel.dk>