ALSA: asoc: codecs - merge structs snd_soc_codec_dai and snd_soc_cpu_dai.

This patch merges struct snd_soc_codec_dai and struct
snd_soc_cpu_dai into struct snd_soc_dai for the codec drivers.

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/sound/soc/codecs/wm8510.h b/sound/soc/codecs/wm8510.h
index c862e7b..f5d2e42 100644
--- a/sound/soc/codecs/wm8510.h
+++ b/sound/soc/codecs/wm8510.h
@@ -97,7 +97,7 @@
 	unsigned short i2c_address;
 };
 
-extern struct snd_soc_codec_dai wm8510_dai;
+extern struct snd_soc_dai wm8510_dai;
 extern struct snd_soc_codec_device soc_codec_dev_wm8510;
 
 #endif