I replaced "console=null" with "quiet loglevel=2",
based on the findings in #2989fixes#3269
[ci:ignore-count]
[ci:skip-build]: already built successfully in CI
Add ucm configs and symlink for SOF firmware. Doing it in the firmware
subpackage because it doesn't work without linux-firmware-mediatek.
[ci:skip-build]: already built successfully in CI