scsi: qla1280: Stop using scsi_cmnd.tag

Use scsi_cmd_to_rq(cmd)->tag instead of scsi_cmnd.tag as preference.

Link: https://lore.kernel.org/r/1629294801-32102-2-git-send-email-john.garry@huawei.com


Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>