soc/intel/xeon_sp/chip_common: Improve the domain ID

Use a union to access the PCI domain ID.
This will become handy in the following commits to gather meta-data
from the domain ID.

Change-Id: I5c371961768410167a571358f6f366847a259eb6
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80099
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions