dt-bindings: display: renesas: du: Add vendor prefix to vsps property

      supplied they must be named "dclkin.x" with "x" being the input clock

      numerical index.

  - vsps: A list of phandle and channel index tuples to the VSPs that handle

    the memory interfaces for the DU channels. The phandle identifies the VSP

    instance that serves the DU channel, and the channel index identifies the

    LIF instance in that VSP.

  - renesas,cmms: A list of phandles to the CMM instances present in the SoC,

    one for each available DU channel. The property shall not be specified for

    SoCs that do not provide any CMM (such as V3M and V3H).

  - renesas,vsps: A list of phandle and channel index tuples to the VSPs that

    handle the memory interfaces for the DU channels. The phandle identifies the

    VSP instance that serves the DU channel, and the channel index identifies

    the LIF instance in that VSP.

Required nodes:

The connections to the DU output video ports are modeled using the OF graph

			 <&cpg CPG_MOD 722>,

			 <&cpg CPG_MOD 721>;

		clock-names = "du.0", "du.1", "du.2", "du.3";

		vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;

		renesas,cmms = <&cmm0>, <&cmm1>, <&cmm2>, <&cmm3>;

		renesas,vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;

		ports {

			#address-cells = <1>;