Hook up the IGD config options IgdDvmt50PreAlloc and ApertureSize to the
option API, so they can be configured at runtime without recompilation.
The Aperture size falls back to the FSP default value, so no change if
unconfigured.
Change-Id: Idad22ca79c10d575320b4360ec24c2019a837446
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87398
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maxim Polyakov <max.senia.poliak@gmail.com>