ASoC: Convert CODEC drivers to module_platform_driver

Factors out a bit of boilerplate.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index 486aef6..d0f9d90 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -625,17 +625,7 @@
 	.remove = __devexit_p(uda134x_codec_remove),
 };
 
-static int __init uda134x_codec_init(void)
-{
-	return platform_driver_register(&uda134x_codec_driver);
-}
-module_init(uda134x_codec_init);
-
-static void __exit uda134x_codec_exit(void)
-{
-	platform_driver_unregister(&uda134x_codec_driver);
-}
-module_exit(uda134x_codec_exit);
+module_platform_driver(uda134x_codec_driver);
 
 MODULE_DESCRIPTION("UDA134X ALSA soc codec driver");
 MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");