dt-bindings: drm/bridge: anx7625: describe Type-C connector

dt-bindings: drm/bridge: anx7625: describe Type-C connector

ANX7625 can be used to mux converted video stream with the USB signals
on a Type-C connector. Describe the optional connector subnode, make it
exclusive with the AUX bus and port@1 as it is impossible to have both
eDP panel and USB-C connector.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260121-anx7625-typec-v2-1-d14f31256a17@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>