ehea: 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/ehea/ehea_main.c

@@ -103,7 +103,7 @@ static int ehea_probe_adapter(struct platform_device *dev);
 
 static int ehea_remove(struct platform_device *dev);
 
-static struct of_device_id ehea_module_device_table[] = {
+static const struct of_device_id ehea_module_device_table[] = {
 	{
 		.name = "lhea",
 		.compatible = "IBM,lhea",
@@ -116,7 +116,7 @@ static struct of_device_id ehea_module_device_table[] = {
 };
 MODULE_DEVICE_TABLE(of, ehea_module_device_table);
 
-static struct of_device_id ehea_device_table[] = {
+static const struct of_device_id ehea_device_table[] = {
 	{
 		.name = "lhea",
 		.compatible = "IBM,lhea",