scsi: mvme147: 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/20230322195515.1267197-56-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/mvme147.c

@@ -69,7 +69,7 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 	m147_pcc->dma_cntrl = 0;
 }
 
-static struct scsi_host_template mvme147_host_template = {
+static const struct scsi_host_template mvme147_host_template = {
 	.module			= THIS_MODULE,
 	.proc_name		= "MVME147",
 	.name			= "MVME147 built-in SCSI",