scsi: a2091: 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/20230322195515.1267197-15-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/a2091.c

@@ -180,7 +180,7 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 	}
 }
 
-static struct scsi_host_template a2091_scsi_template = {
+static const struct scsi_host_template a2091_scsi_template = {
 	.module			= THIS_MODULE,
 	.name			= "Commodore A2091/A590 SCSI",
 	.show_info		= wd33c93_show_info,