Thinkpad Z16 Gen2 Mic mute LED not switching on when press F4

alsa-project/alsa-ucm-conf issue #326 was opened from pma1:

The mic and sound output works fine. alsamixer can switch on/off the F4/Mic-mute LED automatically. But when press Fn+F4, the mic-mute led is not working.

/sys/class/sound/ctl-led/mic/card1# cat list 129

Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/326 Repository URL: https://github.com/alsa-project/alsa-ucm-conf