smartpqi: initial commit of Microsemi smartpqi driver

smartpqi: initial commit of Microsemi smartpqi driver

Orabug: 25144431

This initial commit contains Microsemi's smartpqi module.

[mkp: Minor tweaks to apply to 4.9/scsi-queue]

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 6c223761eb5482dca2bd981d0a800c4aba3c9009)
Signed-off-by: Brian Maly <brian.maly@oracle.com>