Fix of_serial section mismatch warnings

From: Josh Boyer <[email protected]>

Fix the following section mismatches:

WARNING: drivers/built-in.o(.exit.text+0x5a): Section mismatch in reference from the function of_platform_serial_exit() to the variable .devinit.data:of_platform_serial_driver The function __exit of_platform_serial_exit() references
a variable __devinitdata of_platform_serial_driver.

---
 drivers/serial/of_serial.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -138,7 +138,7 @@ static struct of_device_id __devinitdata
 	{ /* end of list */ },
 };
 
-static struct of_platform_driver __devinitdata of_platform_serial_driver = {
+static struct of_platform_driver of_platform_serial_driver = {
 	.owner = THIS_MODULE,
 	.name = "of_serial",
 	.probe = of_platform_serial_probe,