ASoC: Remove platform device from DAI suspend and resume operations

None of the DAIs use it except s3c2412-i2s which only uses it for
dev_() printouts.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 402fc5b..73fa10d 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -244,8 +244,7 @@
 
 #ifdef CONFIG_PM
 
-static int pxa_ssp_suspend(struct platform_device *pdev,
-	struct snd_soc_dai *cpu_dai)
+static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai)
 {
 	struct ssp_priv *priv = cpu_dai->private_data;
 
@@ -257,8 +256,7 @@
 	return 0;
 }
 
-static int pxa_ssp_resume(struct platform_device *pdev,
-	struct snd_soc_dai *cpu_dai)
+static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai)
 {
 	struct ssp_priv *priv = cpu_dai->private_data;