scsi: smartpqi: ensure controller is in SIS mode at init

scsi: smartpqi: ensure controller is in SIS mode at init

Orabug: 26191021, 26447813

put in SIS mode during initialization.
support kexec/kdump

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 162d7753fce9a00719c09dfebd9fee3855e27fbe)
Signed-off-by: Brian Maly <brian.maly@oracle.com>