* booting with near-mainline kernel works after running
/etc/postmarketos-mkinitfs/hooks/99-create_uboot_uimg.sh
to create /boot/initramfs.uimg from /boot/initramfs.
TODO: Auto-creating /boot/initramfs.uimg via hook does not work, as
https://gitlab.com/postmarketOS/pmaports/-/blob/master/main/postmarketos-mkinitfs/init.sh
is calling the hooks before /boot is mounted.

* kernel: github.com/tobetter/linux linux-5.14.3,
with hardkernel tfts disabled, as they had compile errors

* Bootlogo only 1280x720, full-hd logo not shown properly out of the box.

* Firmware for odroid-n2plus contains u-boot.bin, installed to
/boot/ and to /usr/share/u-boot/odroid_n2plus/ for sd-fusing
via deviceinfo_sd_embed_firmware