Request to backport alsa-ucm-conf and libasound2

[Nícolas F. R. A. Prado <nfraprado@collabora.com>]

Hi,

the alsa-ucm-conf package on bullseye, at v1.2.4-2, is missing UCM files for
several machines, for example, Lenovo Chromebook N23 Yoga (mt8173-elm-hana),
which makes audio unusable on them. These UCMs are available on bookworm, at
1.2.8-1.

Since these UCMs use newer syntax versions ("Syntax 4", and up to 6), it
wouldn't be enough to simply backport alsa-ucm-conf to bullseye, libasound2
would also need to be backported. Is this something that could be done?

Thanks,
Nícolas