We need the stub header file. If PCI was implemented, assume
generic MMIO mapped configuration space would work here.
Change-Id: Ia731e5c5a6725fe22ab8b0398cafa1127ed90891
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35648
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>