ALSA: hda - fix a typo by changing mute_led_nid to cap_mute_led_nid

BugLink: https://bugs.launchpad.net/bugs/1329580
Cc: David Henningsson <david.henningsson@canonical.com>
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: NHui Wang <hui.wang@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -3529,7 +3529,7 @@ static void alc269_fixup_hp_cap_mic_mute_hook(struct hda_codec *codec,
 	struct alc_spec *spec = codec->spec;
 	unsigned int pinval, enable, disable;
 
-	pinval = snd_hda_codec_get_pin_target(codec, spec->mute_led_nid);
+	pinval = snd_hda_codec_get_pin_target(codec, spec->cap_mute_led_nid);
 	pinval &= ~AC_PINCTL_VREFEN;
 	enable  = pinval | AC_PINCTL_VREF_80;
 	disable = pinval | AC_PINCTL_VREF_HIZ;