Add Focusrite Scarlett 2i2 gen2

[GitHub pull_request - opened]

alsa-project/alsa-ucm-conf pull request #234 was opened from superseed:

This is basically #203 but for the 2i2.

I don't really know what I'm doing, but with these changes, I get two separate mono inputs in Pipewire, which is what I was looking for.

Request URL   : https://github.com/alsa-project/alsa-ucm-conf/pull/234
Patch URL     : https://github.com/alsa-project/alsa-ucm-conf/pull/234.patch
Repository URL: https://github.com/alsa-project/alsa-ucm-conf