update kernel info in README.md

add linux-dtb back for grub devicetree loading

use armbian beta repo for kernel

build mainline kernel for bookworm and trixie

Revert "add panfork repo for bookworm"

add panfork repo for bookworm

install libmali for trixie

remove software-properties for trixie

add trixie build with libmali

remove useless dtb/dtbo for edk2

update readme for vendor kernel

add obs repo for grub-dtbo

toggle to vendor kernel

add rec deps for bookworm back

fix remove raspi-firmware

remove raspi-firmware

fix armbian desktop pkg list url

disable jammy build

use xz compression for jammy

use zstd compress for jammy

fix live build build dep

remove maximize-build-space