mb/lenovo/t420s/devicetree.cb: Fix PCIe port definitions

The NEC uPD720200A USB 3.0 controller on the T420s is actually
connected to PCIe root port #5 on the PCH, not #7. Enable RP#5,
disable RP#7 and update comments accordingly.
Test=USB 3.0 controller shows in `lspci`

Change-Id: I21ac72fd5632e552bdcdbd573cf92b433ed545ff
Signed-off-by: Jake Mannens <jakem_5@hotmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions