Input: touchscreen - use macro module_platform_driver()

Commit 940ab88962bc1aff3273a8356d64577a6e386736 introduced a new macro to
save some platform_driver boilerplate code. Use it.

Signed-off-by: JJ Ding <dgdunix@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
index 4303149..6c6f6d8 100644
--- a/drivers/input/touchscreen/tps6507x-ts.c
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -371,18 +371,7 @@
 	.probe = tps6507x_ts_probe,
 	.remove = __devexit_p(tps6507x_ts_remove),
 };
-
-static int __init tps6507x_ts_init(void)
-{
-	return platform_driver_register(&tps6507x_ts_driver);
-}
-module_init(tps6507x_ts_init);
-
-static void __exit tps6507x_ts_exit(void)
-{
-	platform_driver_unregister(&tps6507x_ts_driver);
-}
-module_exit(tps6507x_ts_exit);
+module_platform_driver(tps6507x_ts_driver);
 
 MODULE_AUTHOR("Todd Fischer <todd.fischer@ridgerun.com>");
 MODULE_DESCRIPTION("TPS6507x - TouchScreen driver");