Replace all users of blk_mq_pci_map_queues with the more generic
blk_mq_map_hw_queues. This in preparation to retire
blk_mq_pci_map_queues.
Reviewed-by: Christoph Hellwig<hch@xxxxxx>
Reviewed-by: Hannes Reinecke<hare@xxxxxxx>
Signed-off-by: Daniel Wagner<wagi@xxxxxxxxxx>