scsi: 3w-sas: Declare SCSI host template const

Make it explicit that the SCSI host template is not modified.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230322195515.1267197-11-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/3w-sas.c

@@ -1530,8 +1530,7 @@ static int twl_slave_configure(struct scsi_device *sdev)
 	return 0;
 } /* End twl_slave_configure() */
 
-/* scsi_host_template initializer */
-static struct scsi_host_template driver_template = {
+static const struct scsi_host_template driver_template = {
 	.module			= THIS_MODULE,
 	.name			= "3w-sas",
 	.queuecommand		= twl_scsi_queue,