[Letux-kernel] Updates for LetuxOS.arm64 rootfs images

[H. Nikolaus Schaller]

Hi,
with having a bootable kernel for the BeagleY-AI with LetuxOS, I was able to
flash a 256 GB µSD and run the scripts to create prebuild Images. Here are the
results:

	https://download.goldelico.com/gta04-debian-rootfs/toc.html

It just took 2 days (I don't know why because the system load was really
low and µSD rarely active). So something may slow down operation, but
doesn't break it. Except for stretch/lxde where there was a unrelated
local network error.

So with finally modern rootfs images it should be even easier to makesd
systems with LetuxOS.

And I can focus on the LX16/LX20 and making the BBY-AI missing features.
After Embedded World Fair.

BR,
Nikolaus