[ALSA] hda: Add dynamic mono mixer support for STAC92xx codecs

Allows for dynamically creating mono out mixer controls and well
as mono mux controls.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index df927be..26812dc 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -769,7 +769,7 @@
 /*
  * query AMP capabilities for the given widget and direction
  */
-static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
+u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 {
 	struct hda_amp_info *info;