ASoC: core - Optimise and refactor pcm_new() to pass only rtd

Currently pcm_new() passes in 3 arguments :- card, pcm and DAI.

Refactor this to only pass in 1 argument (i.e. the rtd) since struct rtd contains
card, pcm and DAI along with other members too that are useful too.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/sh/siu_pcm.c b/sound/soc/sh/siu_pcm.c
index a423bab..f8f6816 100644
--- a/sound/soc/sh/siu_pcm.c
+++ b/sound/soc/sh/siu_pcm.c
@@ -527,10 +527,11 @@
 	return bytes_to_frames(ss->runtime, ptr);
 }
 
-static int siu_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
-		       struct snd_pcm *pcm)
+static int siu_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	/* card->dev == socdev->dev, see snd_soc_new_pcms() */
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
 	struct siu_info *info = siu_i2s_data;
 	struct platform_device *pdev = to_platform_device(card->dev);
 	int ret;