[ALSA] soc - Ensure PCMs are suspended

This fixes a bug whereby PCMs were not being suspended when the rest of the
audio subsystem was suspended.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0afcdfe..6b51ff2 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -447,6 +447,9 @@
 
 	/* codec/machine specific init - e.g. add machine controls */
 	int (*init)(struct snd_soc_codec *codec);
+
+	/* DAI pcm */
+	struct snd_pcm *pcm;
 };
 
 /* SoC machine */