I received feedback that people were confused by "Error: foo", so replace it with something more user friendly that serves the same purpose. Change-Id: I17b902a62020109e079437c8d9ffd7ea5979a3a1 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39274 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>