For Gen1 SoCs, the range starting from the end of VTd BAR to the end
of 32-bit domain MMIO resource window is reserved for unknown devices.
Get them reserved.
TEST=Build and boot on intel/archercity CRB
Change-Id: Ie133fe3173ce9696769c7247bd2524c7b21b1cf8
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83136
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>