dt-bindings: update usb-c-connector example

description:

  A USB connector node represents a physical USB connector. It should be a child

  of a USB interface controller.

  of a USB interface controller or a separate node when it is attached to both

  MUX and USB interface controller.

properties:

  compatible:

      };

    };

  # USB-C connector attached to SoC and USB3 typec port controller(hd3ss3220)

  # with SS 2:1 MUX. HS lines routed to SoC, SS lines routed to the MUX and

  # the output of MUX is connected to the SoC.

  - |

    connector {

        compatible = "usb-c-connector";

        label = "USB-C";

        data-role = "dual";

        ports {

                #address-cells = <1>;

                #size-cells = <0>;

                port@0 {

                        reg = <0>;

                        hs_ep: endpoint {

                                remote-endpoint = <&usb3_hs_ep>;

                        };

                };

                port@1 {

                        reg = <1>;

                        ss_ep: endpoint {

                                remote-endpoint = <&hd3ss3220_in_ep>;

                        };

                };

        };

    };

  # USB connector with GPIO control lines

  - |

    #include <dt-bindings/gpio/gpio.h>