This allows booting pmOS from u-boot on existing and new installs. Setting the boot partition to vfat isn't strictly necessary (ext2 seems to work OK), but IIUC either FAT is in the EFI spec or it's what everyone else uses. We made a similar patch to the OP6/OP6T previously. Signed-off-by: Clayton Craft <craftyguy@postmarketos.org> Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7961>