IBM-EMAC: 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/ethernet/ibm/emac/core.c

@@ -2981,7 +2981,7 @@ static int emac_remove(struct platform_device *ofdev)
 }
 
 /* XXX Features in here should be replaced by properties... */
-static struct of_device_id emac_match[] =
+static const struct of_device_id emac_match[] =
 {
 	{
 		.type		= "network",

drivers/net/ethernet/ibm/emac/mal.c

@@ -753,7 +753,7 @@ static int mal_remove(struct platform_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id mal_platform_match[] =
+static const struct of_device_id mal_platform_match[] =
 {
 	{
 		.compatible	= "ibm,mcmal",

drivers/net/ethernet/ibm/emac/rgmii.c

@@ -305,7 +305,7 @@ static int rgmii_remove(struct platform_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id rgmii_match[] =
+static const struct of_device_id rgmii_match[] =
 {
 	{
 		.compatible	= "ibm,rgmii",

drivers/net/ethernet/ibm/emac/tah.c

@@ -148,7 +148,7 @@ static int tah_remove(struct platform_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id tah_match[] =
+static const struct of_device_id tah_match[] =
 {
 	{
 		.compatible	= "ibm,tah",

drivers/net/ethernet/ibm/emac/zmii.c

@@ -295,7 +295,7 @@ static int zmii_remove(struct platform_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id zmii_match[] =
+static const struct of_device_id zmii_match[] =
 {
 	{
 		.compatible	= "ibm,zmii",