net: amd: constify zorro_device_id

zorro_device_id are not supposed to change at runtime. All functions
working with zorro_device_id provided by <linux/zorro.h> work with
const zorro_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/amd/ariadne.c b/drivers/net/ethernet/amd/ariadne.c
index 5fd7b15..4b6a5cb 100644
--- a/drivers/net/ethernet/amd/ariadne.c
+++ b/drivers/net/ethernet/amd/ariadne.c
@@ -692,7 +692,7 @@ static void ariadne_remove_one(struct zorro_dev *z)
 	free_netdev(dev);
 }
 
-static struct zorro_device_id ariadne_zorro_tbl[] = {
+static const struct zorro_device_id ariadne_zorro_tbl[] = {
 	{ ZORRO_PROD_VILLAGE_TRONIC_ARIADNE },
 	{ 0 }
 };