ASoC: au1x: psc-i2s.c: use devm_snd_soc_register_component()

We have devm_xxx version of snd_soc_register_component,
let's use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/au1x/psc-i2s.c

@@ -340,16 +340,14 @@ static int au1xpsc_i2s_drvprobe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, wd);
 
-	return snd_soc_register_component(&pdev->dev, &au1xpsc_i2s_component,
-					  &wd->dai_drv, 1);
+	return devm_snd_soc_register_component(&pdev->dev,
+				&au1xpsc_i2s_component, &wd->dai_drv, 1);
 }
 
 static int au1xpsc_i2s_drvremove(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
 
-	snd_soc_unregister_component(&pdev->dev);
-
 	__raw_writel(0, I2S_CFG(wd));
 	wmb(); /* drain writebuffer */
 	__raw_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));