scsi: ibmvfc: Declare SCSI host template const

Make it explicit that the SCSI host template is not modified.
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230322195515.1267197-45-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ibmvscsi/ibmvfc.c

@@ -3611,7 +3611,7 @@ static struct attribute *ibmvfc_host_attrs[] = {
 
 ATTRIBUTE_GROUPS(ibmvfc_host);
 
-static struct scsi_host_template driver_template = {
+static const struct scsi_host_template driver_template = {
 	.module = THIS_MODULE,
 	.name = "IBM POWER Virtual FC Adapter",
 	.proc_name = IBMVFC_NAME,