[ALSA] Fix documentation of ASoC

Fixed obsolete *_t typedefs in ASoC documentation.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/Documentation/sound/alsa/soc/codec.txt b/Documentation/sound/alsa/soc/codec.txt
index 47b36cb..274657a 100644
--- a/Documentation/sound/alsa/soc/codec.txt
+++ b/Documentation/sound/alsa/soc/codec.txt
@@ -170,11 +170,11 @@
 
 /* SoC audio ops */
 struct snd_soc_ops {
-	int (*startup)(snd_pcm_substream_t *);
-	void (*shutdown)(snd_pcm_substream_t *);
-	int (*hw_params)(snd_pcm_substream_t *, snd_pcm_hw_params_t *);
-	int (*hw_free)(snd_pcm_substream_t *);
-	int (*prepare)(snd_pcm_substream_t *);
+	int (*startup)(struct snd_pcm_substream *);
+	void (*shutdown)(struct snd_pcm_substream *);
+	int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
+	int (*hw_free)(struct snd_pcm_substream *);
+	int (*prepare)(struct snd_pcm_substream *);
 };
 
 Please refer to the alsa driver PCM documentation for details.