[ALSA] Fix the soc code after dhowells workqueue changes.

From: Andrew Morton <akpm@osdl.org>
I converted the workqueues to per-device while I was there.  It seems
strange to create a new kernel thread (on each CPU!) and to then only
have a single global work to ever be queued upon it.
Plus without this, I'd have to use the _NAR stuff, gawd help me.
Does that workqueue really need to be per-cpu?
Does that workqueue really need to exist?  Why not use keventd?
Cc: Takashi Iwai <tiwai@suse.de>
Cc: David Howells <dhowells@redhat.com>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 3dfe052..c985a11 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -15,6 +15,7 @@
 
 #include <linux/platform_device.h>
 #include <linux/types.h>
+#include <linux/workqueue.h>
 #include <sound/driver.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -454,6 +455,7 @@
 	struct snd_soc_platform *platform;
 	struct snd_soc_codec *codec;
 	struct snd_soc_codec_device *codec_dev;
+	struct delayed_work delayed_work;
 	void *codec_data;
 };