drivers/rtc/rtc-twl.c: cleanup with module_platform_driver() conversion

Use module_platform_driver() to register the platform driver.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-twl.c

@@ -626,17 +626,7 @@ static struct platform_driver twl4030rtc_driver = {
 	},
 };
 
-static int __init twl_rtc_init(void)
-{
-	return platform_driver_register(&twl4030rtc_driver);
-}
-module_init(twl_rtc_init);
-
-static void __exit twl_rtc_exit(void)
-{
-	platform_driver_unregister(&twl4030rtc_driver);
-}
-module_exit(twl_rtc_exit);
+module_platform_driver(twl4030rtc_driver);
 
 MODULE_AUTHOR("Texas Instruments, MontaVista Software");
 MODULE_LICENSE("GPL");