scsi: mpt3sas: Update maintainers

Updated maintainers list for MPT DRIVERS

Link: https://lore.kernel.org/r/1588056428-29369-1-git-send-email-suganath-prabu.subramani@broadcom.com


Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>