If override tree does not have any device, then the chip info structure in it cannot be associated with the correct device and ends up being added as a standalone chip info structure without any device actually using it. This change prevents this condition by throwing an error during compilation. BUG=b:130342895 Change-Id: I7b8bb6b3228030a465976ca32ce8ef63f41365dd Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32289 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>