For testing Mesa on LAVA devices with the amd64 architecture, build
kernels and rootfs in the same way as we do for arm64 and armhf.
Also add a few trivial jobs for a specific AMD Chromebook.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Rohan Garg <rohan.garg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5903>
Tomeu Vizoso