Consistently use the official uppercase spelling. Change-Id: I2e2d62389d1b965f4a391080a10e7f97fa787d14 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39350 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>