The IO mask shouldn't contain zeros inside the block of ones.
Change-Id: Icfebbf1d1d88ceef58800339bf899931fdc61ab7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/30954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>