ALSA: introduce snd_print_pcm_rates()

We want to share some code with print_pcm_rates(),
so extract a common routine snd_print_pcm_rates() from it.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index aac569b..d7e3a16 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -284,6 +284,9 @@
 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
 #endif
 
+#define SND_PRINT_RATES_ADVISED_BUFSIZE	80
+void snd_print_pcm_rates(int pcm, char *buf, int buflen);
+
 /*
  * Misc
  */