dt-bindings: usb: Add analogix anx7411 PD binding

Add analogix PD chip anx7411 device binding

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Link: https://lore.kernel.org/r/20220714081350.36447-1-xji@analogixsemi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>