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/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c
index c326d29..db74005 100644
--- a/sound/soc/sh/dma-sh7760.c
+++ b/sound/soc/sh/dma-sh7760.c
@@ -327,10 +327,10 @@
 	snd_pcm_lib_preallocate_free_for_all(pcm);
 }
 
-static int camelot_pcm_new(struct snd_card *card,
-			   struct snd_soc_dai *dai,
-			   struct snd_pcm *pcm)
+static int camelot_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_pcm *pcm = rtd->pcm;
+
 	/* dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel
 	 * in MMAP mode (i.e. aplay -M)
 	 */