240112-01 - experimental debian bookworm image for aarch64/arm64 chromebooks based on the mediatek mt8186 soc (corsola)

• this is just an experimental testing image to be able to get started with linux on this type of machines
• see: https://github.com/hexdump0815/imagebuilder/tree/main/systems/chromebook_corsola
• kernel version used: around v6.7.0-rc8, based on the collabora chromeos kernel mainline integration tree for the mediatek chromebooks
• minimal testing has been done on a magneton chromebook (lenovo cb ideapad slim 3)
• debian bookworm only for now
• gpu now supported via panfrost/mesa
• audio is not working intentionally - this needs some careful (i.e. to not destroy speakers or ears) extra work i guess