mb/*/devicetree.cb: Remove unavailable PCIe ports

Some variants only support 4 PCIe ports so there is no need to have
those unavailable ports in the devicetree.

Change-Id: I154cae358fb7f862fc0c8eaa620474b37b5e6484
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30821
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions