arm64: dts: qcom: sc8280xp-x13s: Add QMP to SuperSpeed graph

Following the CRD, connect the two QMP phys inbetween the USB Type-C
connectors and the DisplayPort controller, to handle orientation
switching.

Tested-by: Abel Vesa <abel.vesa@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on HDK8450
Tested-by: Johan Hovold <johan+linaro@kernel.org>	# X13s
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230515032743.400170-9-quic_bjorande@quicinc.com