This avoids the need to hardcode the IOAPIC ID.
Change-Id: I0965b511e71c58f1c31433bc54595a5fabb1c206
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70268
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>