[PATCH 1/1] rockchip: rk3568: Add support for LinkEase EasePi R1

[Liangbin Lian]

Hi Quentin,

> So I guess it's "fine" (although you won't be able to do a proper secure
> boot with this enabled). So you can keep it in.

I discovered that OpenWRT is still using the legacy U-Boot image file
format script [1], too.
And the `source` command for executing this type script also requires
 `CONFIG_LEGACY_IMAGE_FORMAT=y` [2].

Therefore, CONFIG_LEGACY_IMAGE_FORMAT=y is still required in many
open-source projects.
(Actually, Armbian also used the legacy U-Boot image file format script)

[1] https://github.com/openwrt/openwrt/blob/7edb29d241dbd4acd0a716a3735dedd5ac3b36e2/target/linux/rockchip/image/Makefile#L24
[2] https://github.com/u-boot/u-boot/blob/master/doc/usage/cmd/source.rst

Cheers,
Liangbin