device-pine64-pinephone: fix audio after pulseaudio upgrade
After pulseaudio 14.0 was released, audio on the pinephone was broken.
This applies the relevant config from here to fix it: https://gitlab.manjaro.org/manjaro-arm/packages/community/phosh/alsa-ucm-pinephone/-/commit/c23f92aa4621f04f6ad028201371383d834b2a09