scsi: fnic: Define stats to track multiqueue (MQ) IOs

Define an array to track IOs for the different queues, print the IO stats
in fnic get stats data.

Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-9-kartilak@cisco.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>