List of changes:
1. Add required SoC programming till romstage
2. Include only required headers into include/soc
3. Fill required FSP-M UPD to call FSP-M API
BUG=b:224325352
TEST=Build 'util/abuild/abuild -p none -t google/rex -a -c max'.
Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com>
Change-Id: I3d5c6ceb7f97429ff903e7577186e8d8843c1f14
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63363
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
