No Windows driver exists or is needed, so hide to prevent an unknown
device from being listed in Windows Device Manager.
TEST=build/boot Win11 on morphius, verify unknown device for the ACP
machine driver no longer present.
Change-Id: I14347ab6c840066db4ff700eff1aad4cf6faf66b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78039
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>