USB-Audio: Add support for RME Fireface UCX II

alsa-project/alsa-ucm-conf pull request #509 was opened from illdefined:

[alsa-info.txt](https://github.com/user-attachments/files/18790978/alsa-info.txt)

Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/509 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/509.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf