fsi: scom: Constify scom_ids

The only usage of scom_ids is to assign its address to the id_table
field in the fsi_driver struct, which is a const pointer, so make it
const to allow the compiler to put it in read-only memory
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>

drivers/fsi/fsi-scom.c

@@ -627,7 +627,7 @@ static int scom_remove(struct device *dev)
 	return 0;
 }
 
-static struct fsi_device_id scom_ids[] = {
+static const struct fsi_device_id scom_ids[] = {
 	{
 		.engine_type = FSI_ENGID_SCOM,
 		.version = FSI_VERSION_ANY,