dt-bindings: arm: hisilicon: split the dt-bindings of each controller into a separate file

Hisilicon CPU controller

Required properties:

- compatible : "hisilicon,cpuctrl"

- reg : Register address and size

The clock registers and power registers of secondary cores are defined

in CPU controller, especially in HIX5HD2 SoC.

Hisilicon Hi3798CV200 Peripheral Controller

The Hi3798CV200 Peripheral Controller controls peripherals, queries

their status, and configures some functions of peripherals.

Required properties:

- compatible: Should contain "hisilicon,hi3798cv200-perictrl", "syscon"

  and "simple-mfd".

- reg: Register address and size of Peripheral Controller.

- #address-cells: Should be 1.

- #size-cells: Should be 1.

Examples:

	perictrl: peripheral-controller@8a20000 {

		compatible = "hisilicon,hi3798cv200-perictrl", "syscon",

			     "simple-mfd";

		reg = <0x8a20000 0x1000>;

		#address-cells = <1>;

		#size-cells = <1>;

	};

Hisilicon Hi6220 Power Always ON domain controller

Required properties:

- compatible : "hisilicon,hi6220-aoctrl"

- reg : Register address and size

- #clock-cells: should be set to 1, many clock registers are defined

  under this controller and this property must be present.

Hisilicon designs this system controller to control the power always

on domain for mobile platform.

Example:

	/*for Hi6220*/

	ao_ctrl: ao_ctrl@f7800000 {

		compatible = "hisilicon,hi6220-aoctrl", "syscon";

		reg = <0x0 0xf7800000 0x0 0x2000>;

		#clock-cells = <1>;

	};

Hisilicon Hi6220 Media domain controller

Required properties:

- compatible : "hisilicon,hi6220-mediactrl"

- reg : Register address and size

- #clock-cells: should be set to 1, many clock registers are defined

  under this controller and this property must be present.

Hisilicon designs this system controller to control the multimedia

domain(e.g. codec, G3D ...) for mobile platform.

Example:

	/*for Hi6220*/

	media_ctrl: media_ctrl@f4410000 {

		compatible = "hisilicon,hi6220-mediactrl", "syscon";

		reg = <0x0 0xf4410000 0x0 0x1000>;

		#clock-cells = <1>;

	};

Hisilicon Hi6220 Power Management domain controller

Required properties:

- compatible : "hisilicon,hi6220-pmctrl"

- reg : Register address and size

- #clock-cells: should be set to 1, some clock registers are define

  under this controller and this property must be present.

Hisilicon designs this system controller to control the power management

domain for mobile platform.

Example:

	/*for Hi6220*/

	pm_ctrl: pm_ctrl@f7032000 {

		compatible = "hisilicon,hi6220-pmctrl", "syscon";

		reg = <0x0 0xf7032000 0x0 0x1000>;

		#clock-cells = <1>;

	};