vc/intel/fsp/mtl: Update header files from 2431_80 to 2473_86

Update header files for FSP for Meteor Lake platform to
version 2473_86, previous version being 2431_80.

FSPM:
1. Removed deprecated UPD PcieMultipleSegmentEnabled
2. Address offset changes

FSPS:
1. Removed deprecated UPD ForcMebxSyncUp
2. Address offset changes

BUG=b:261150757

Signed-off-by: Kulkarni, Srinivas <srinivas.kulkarni@intel.corp-partner.google.com>
Change-Id: Ie396ad7ef4da2d1c52d37477bbb0815d2d650841
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70546
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Maulik Vaghela <maulikvaghela@google.com>