ASoC: Convert nuc900 directory to module_platform_driver

Factor out some boilerplate code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c
index ae8d680..37585b4 100644
--- a/sound/soc/nuc900/nuc900-pcm.c
+++ b/sound/soc/nuc900/nuc900-pcm.c
@@ -358,17 +358,7 @@
 	.remove = __devexit_p(nuc900_soc_platform_remove),
 };
 
-static int __init nuc900_pcm_init(void)
-{
-	return platform_driver_register(&nuc900_pcm_driver);
-}
-module_init(nuc900_pcm_init);
-
-static void __exit nuc900_pcm_exit(void)
-{
-	platform_driver_unregister(&nuc900_pcm_driver);
-}
-module_exit(nuc900_pcm_exit);
+module_platform_driver(nuc900_pcm_driver);
 
 MODULE_AUTHOR("Wan ZongShun, <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("nuc900 Audio DMA module");