apple-bce and apple-ibridge are still moved in tree for now, but in the
future they might get moved out so instaling headers and dkms packages
may be needed at that time.
This means firmware will be selected automatically like macOS
does. These patches also fix a couple of bugs and make a few
optimisations.
For this firmware selection:
# in macos (or linux if you have a copy of the wifi folder):
git clone https://github.com/AsahiLinux/asahi-installer --depth=1
cd asahi-installer/src
python3 -m firmware.wifi /usr/share/firmware/wifi firmware.tar
# in linux
cd /lib/firmware
sudo tar xf /path/to/firmware.tar