NVMe: Fix possible queue use after freed

NVMe: Fix possible queue use after freed

This notifies blk-mq when the tag set contains a different number of
queues prior to freeing unused ones that the request queue points to.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
(cherry picked from commit 949928c1c731417cc0f070912c63878b62b544f4)

Orabug: 25130845

Signed-off-by: Ashok Vairavan <ashok.vairavan@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>