ALSA: hda - add capture mute led support in led_power_filter

Now the led_power_filter() needs to handle 3 situations:
    - only mute_led_nid is set
    - only cap_mute_led_nid is set
    - both mute_led_ind and cap_mute_led_nid are set

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

@@ -3403,7 +3403,8 @@ static unsigned int led_power_filter(struct hda_codec *codec,
 {
 	struct alc_spec *spec = codec->spec;
 
-	if (power_state != AC_PWRST_D3 || nid != spec->mute_led_nid)
+	if (power_state != AC_PWRST_D3 || nid == 0 ||
+	    (nid != spec->mute_led_nid && nid != spec->cap_mute_led_nid))
 		return power_state;
 
 	/* Set pin ctl again, it might have just been set to 0 */
@@ -3563,6 +3564,7 @@ static void alc269_fixup_hp_gpio_mic1_led(struct hda_codec *codec,
 		spec->gpio_led = 0;
 		spec->cap_mute_led_nid = 0x18;
 		snd_hda_add_verbs(codec, gpio_init);
+		codec->power_filter = led_power_filter;
 	}
 }