Firmware Package Split

With today's newest changes to AOSC OS packages, we have decided to split the firmware-nonfree package to free and non-free portions, with the firmware-nonfree packages (pre-installed with any system release) containing only non-free firmware files, and a new firmware-free package containing "free" firmware files.

A normal system upgrade may not install the new firmware-free package automatically. If you started encountering issues regarding missing firmware after you upgraded your system, please check if you have installed firmware-free.

Both packages will be pre-installed with future system releases.