ASoC: Convert Samsung directory to module_platform_driver

Saves some boilerplate code.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
diff --git a/sound/soc/samsung/lowland.c b/sound/soc/samsung/lowland.c
index eff1b4b..4216a06 100644
--- a/sound/soc/samsung/lowland.c
+++ b/sound/soc/samsung/lowland.c
@@ -228,17 +228,7 @@
 	.remove = __devexit_p(lowland_remove),
 };
 
-static int __init lowland_audio_init(void)
-{
-	return platform_driver_register(&lowland_driver);
-}
-module_init(lowland_audio_init);
-
-static void __exit lowland_audio_exit(void)
-{
-	platform_driver_unregister(&lowland_driver);
-}
-module_exit(lowland_audio_exit);
+module_platform_driver(lowland_driver);
 
 MODULE_DESCRIPTION("Lowland audio support");
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");