block: pass a gendisk to blk_queue_free_zone_bitmaps

Switch to a gendisk based API in preparation for moving all zone related
fields from the request_queue to the gendisk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220706070350.1703384-9-hch@lst.de


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