Move header to path with all other test headers to make include paths
unambigous.
Change-Id: Ie2dbb055df658272424df95f58d84caaeba3fc8f
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60969
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>