soc/intel/xeon_sp: Rewrite acpi_create_drhd

Obtain IOMMU (Input/Output Memory Management Unit) info and
enumerate devices using device utils instead of FSP HOB interface,
which might change across SoC generations and no ambiguity across
multiple PCIe segments.

TEST=intel/archercity CRB

coreboot DRHD generation log no changes before and after

Change-Id: Idcfa899c764ffe51db5ed202ead07ad7b6868864
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81048
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions