Without this change the IOAPIC memory window would collide with PCI config space. This was tested on the hp/abm board. Change-Id: I5dd53463961f75bab80a41dc7beff8d0434b24ae Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/5946 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>