ALSA: Convert mips directory to module_platform_driver

Factor out some boilerplate code.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/mips/hal2.c

@@ -935,15 +935,4 @@ static struct platform_driver hal2_driver = {
 	}
 };
 
-static int __init alsa_card_hal2_init(void)
-{
-	return platform_driver_register(&hal2_driver);
-}
-
-static void __exit alsa_card_hal2_exit(void)
-{
-	platform_driver_unregister(&hal2_driver);
-}
-
-module_init(alsa_card_hal2_init);
-module_exit(alsa_card_hal2_exit);
+module_platform_driver(hal2_driver);

sound/mips/sgio2audio.c

@@ -976,15 +976,4 @@ static struct platform_driver sgio2audio_driver = {
 	}
 };
 
-static int __init alsa_card_sgio2audio_init(void)
-{
-	return platform_driver_register(&sgio2audio_driver);
-}
-
-static void __exit alsa_card_sgio2audio_exit(void)
-{
-	platform_driver_unregister(&sgio2audio_driver);
-}
-
-module_init(alsa_card_sgio2audio_init)
-module_exit(alsa_card_sgio2audio_exit)
+module_platform_driver(sgio2audio_driver);