platform/chrome: cros_ec: Add TBT pd_ctrl fields

To support Thunderbolt compatibility mode, synchronize
ec_response_usb_pd_control_v2 with the Chrome EC version, so that
we get the Thunderbolt related control fields and macros.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>