ALSA: hda/realtek: Add mic-mute LED setup for ASUS UM5606

ASUS UM5606* models use the quirk to set up the bass speakers, but it
missed the mic-mute LED configuration.  Other similar models have the
AMD ACP dmic, and the mic-mute is set up for that, but those models
don't have AMD ACP but rather built-in mics of Realtek codec, hence
the Realtek driver should set it up, instead.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=220125
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: tiwai

sound/pci/hda/patch_realtek.c

@@ -6610,6 +6610,7 @@ static void alc294_fixup_bass_speaker_15(struct hda_codec *codec,
 	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		static const hda_nid_t conn[] = { 0x02, 0x03 };
 		snd_hda_override_conn_list(codec, 0x15, ARRAY_SIZE(conn), conn);
+		snd_hda_gen_add_micmute_led_cdev(codec, NULL);
 	}
 }