Apparently they were introduced when refining ICH7 support when
porting Kontron 986LCD-M and then copied over to ICH9 and 10.
Change-Id: I2d9ece608955310d22b79574b9113a1521b2076c
Signed-off-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-on: https://review.coreboot.org/27855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>