google-veyron-jerry: rework to use u-boot on chromeos partition
This approach will allow to install pmOS using instructions from https://wiki.postmarketos.org/wiki/ChromeOS_devices without additional actions outside of pmbootstrap
To implement that, there are two things needed:
- U-Boot package. Reference:
- https://gitlab.com/postmarketOS/pmaports/-/tree/master/temp/u-boot-peach-pit
- https://github.com/hexdump0815/u-boot-chainloading-for-arm-chromebooks/blob/master/readme.cbr
- deviceinfo change, something like:
# Bootloader related
deviceinfo_flash_method="none"
deviceinfo_cgpt_kpart="/usr/share/u-boot/google-veyron/u-boot-dtb.img.kpart"
deviceinfo_cgpt_kpart_start="8192"
deviceinfo_cgpt_kpart_size="32768"