ASoC: mediatek: mt6359: convert to use module_platform_driver

Simplify the code by using module_platform_driver macro for
mt6359-accdet.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20210531051203.228567-1-nobuhiro1.iwamatsu@toshiba.co.jpSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/mt6359-accdet.c

@@ -1057,22 +1057,7 @@ static struct platform_driver mt6359_accdet_driver = {
 	.probe = mt6359_accdet_probe,
 };
 
-static int __init mt6359_accdet_driver_init(void)
-{
-	int ret = 0;
-
-	ret = platform_driver_register(&mt6359_accdet_driver);
-	if (ret)
-		return -ENODEV;
-	return 0;
-}
-
-static void __exit mt6359_accdet_driver_exit(void)
-{
-	platform_driver_unregister(&mt6359_accdet_driver);
-}
-module_init(mt6359_accdet_driver_init);
-module_exit(mt6359_accdet_driver_exit);
+module_platform_driver(mt6359_accdet_driver)
 
 /* Module information */
 MODULE_DESCRIPTION("MT6359 ALSA SoC codec jack driver");