via-velocity: constify of_device_id array

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index c20206f..ae68afd 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -392,7 +392,7 @@
  *	Describe the OF device identifiers that we support in this
  *	device driver. Used for devicetree nodes.
  */
-static struct of_device_id velocity_of_ids[] = {
+static const struct of_device_id velocity_of_ids[] = {
 	{ .compatible = "via,velocity-vt6110", .data = &chip_info_table[0] },
 	{ /* Sentinel */ },
 };