mtd: nand: davinci: use platform_driver_probe()

NAND devices can't be hotpluggable. We can use that
to shrink code size a bit by using platform_driver_probe().
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>

drivers/mtd/nand/davinci_nand.c

@@ -663,7 +663,6 @@ static int __exit nand_davinci_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver nand_davinci_driver = {
-	.probe		= nand_davinci_probe,
 	.remove		= __exit_p(nand_davinci_remove),
 	.driver		= {
 		.name	= DRIVER_NAME,
@@ -672,7 +671,7 @@ static struct platform_driver nand_davinci_driver = {
 
 static int __init nand_davinci_init(void)
 {
-	return platform_driver_register(&nand_davinci_driver);
+	return platform_driver_probe(&nand_davinci_driver, nand_davinci_probe);
 }
 module_init(nand_davinci_init);