In addition to CB:45664, rename clevo/l140cu to clevo/cml-u being able
to add more variants under a generic mainboard later.
Change-Id: I9c16e24830ebb80752df302aa2e63d9df8edad95
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45665
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>