net: phy: 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>

drivers/net/phy/mdio-bcm-unimac.c

@@ -187,7 +187,7 @@ static int unimac_mdio_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id unimac_mdio_ids[] = {
+static const struct of_device_id unimac_mdio_ids[] = {
 	{ .compatible = "brcm,genet-mdio-v4", },
 	{ .compatible = "brcm,genet-mdio-v3", },
 	{ .compatible = "brcm,genet-mdio-v2", },

drivers/net/phy/mdio-gpio.c

@@ -249,7 +249,7 @@ static int mdio_gpio_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id mdio_gpio_of_match[] = {
+static const struct of_device_id mdio_gpio_of_match[] = {
 	{ .compatible = "virtual,mdio-gpio", },
 	{ /* sentinel */ }
 };

drivers/net/phy/mdio-mux-gpio.c

@@ -99,7 +99,7 @@ static int mdio_mux_gpio_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id mdio_mux_gpio_match[] = {
+static const struct of_device_id mdio_mux_gpio_match[] = {
 	{
 		.compatible = "mdio-mux-gpio",
 	},

drivers/net/phy/mdio-mux-mmioreg.c

@@ -145,7 +145,7 @@ static int mdio_mux_mmioreg_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id mdio_mux_mmioreg_match[] = {
+static const struct of_device_id mdio_mux_mmioreg_match[] = {
 	{
 		.compatible = "mdio-mux-mmioreg",
 	},

drivers/net/phy/mdio-octeon.c

@@ -252,7 +252,7 @@ static int octeon_mdiobus_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id octeon_mdiobus_match[] = {
+static const struct of_device_id octeon_mdiobus_match[] = {
 	{
 		.compatible = "cavium,octeon-3860-mdio",
 	},