scsi: fnic: Declare 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/20230322195515.1267197-37-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/fnic/fnic_main.c

@@ -95,7 +95,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev)
 	return 0;
 }
 
-static struct scsi_host_template fnic_host_template = {
+static const struct scsi_host_template fnic_host_template = {
 	.module = THIS_MODULE,
 	.name = DRV_NAME,
 	.queuecommand = fnic_queuecommand,