None of these functions are used outside of the files they are defined
in, so they can all be static.
Change-Id: Ie00fef5a5ba2779e0ff45640cff5cc9f1d096dc1
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33945
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>