The bootctl tests are currently disabled due to some image
incompatibilities: the multi UI uses one image and the simple UI uses a
different one.
Update the logic to switch between these logos when the layout changes.
For now, use the U-Boot logo in both cases.
Signed-off-by: Simon Glass <simon.glass@canonical.com>
Add a new 'multi' UI which can display in a simple format (like GRUB) as
well as a more modern format with a mouse.
Signed-off-by: Simon Glass <sjg@chromium.org>
