ALSA: hda - Make azx_attach_pcm_stream static

It is only used in hda_controller.c now.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_controller.c

@@ -971,8 +971,8 @@ static void azx_pcm_free(struct snd_pcm *pcm)
 
 #define MAX_PREALLOC_SIZE	(32 * 1024 * 1024)
 
-int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
-			  struct hda_pcm *cpcm)
+static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
+				 struct hda_pcm *cpcm)
 {
 	struct azx *chip = bus->private_data;
 	struct snd_pcm *pcm;