Start squashing all the .mdt files into .mbn and install those. Keep
installing compatibility symlinks so old and new kernel versions can
work with the firmware - the kernel detects the correct format anyways.
[ci:skip-build] already built successfully in CI
Add an initial port for the Fairphone 5 smartphone. This includes
firmware and close-to-mainline kernel package.
[ci:skip-build]: Already built successfully in CI
