[ALSA] Clean up with common snd_ctl_boolean_*_info callbacks

Clean up codes using the new common snd_ctl_boolean_*_info() callbacks.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/i2c/tea6330t.c b/sound/i2c/tea6330t.c
index ae5b1e3..21ff974 100644
--- a/sound/i2c/tea6330t.c
+++ b/sound/i2c/tea6330t.c
@@ -142,15 +142,7 @@
   .info = snd_tea6330t_info_master_switch, \
   .get = snd_tea6330t_get_master_switch, .put = snd_tea6330t_put_master_switch }
 
-static int snd_tea6330t_info_master_switch(struct snd_kcontrol *kcontrol,
-					   struct snd_ctl_elem_info *uinfo)
-{
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
-	uinfo->count = 2;
-	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = 1;
-	return 0;
-}
+#define snd_tea6330t_info_master_switch		snd_ctl_boolean_stereo_info
 
 static int snd_tea6330t_get_master_switch(struct snd_kcontrol *kcontrol,
 					  struct snd_ctl_elem_value *ucontrol)