block: use bio_queue_enter instead of blk_queue_enter in bio_poll

We want to have a valid live gendisk to call ->poll and not just a
request_queue, so call the right helper.

Fixes: 3e08773c ("block: switch polling to be bio based")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220523124302.526186-1-hch@lst.de


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