DT bindings for the Renesas R-Car and RZ/G Reset Controllers

The R-Car and RZ/G Reset Controllers provide reset control.

Required properties:
  - compatible: Should be
		  - "renesas,<soctype>-rst" for R-Car Gen2 and RZ/G
		Examples with soctypes are:
		  - "renesas,r8a7742-rst" (RZ/G1H)
		  - "renesas,r8a7743-rst" (RZ/G1M)
		  - "renesas,r8a7744-rst" (RZ/G1N)
		  - "renesas,r8a7745-rst" (RZ/G1E)
		  - "renesas,r8a77470-rst" (RZ/G1C)
		  - "renesas,r8a7790-rst" (R-Car H2)
		  - "renesas,r8a7791-rst" (R-Car M2-W)
		  - "renesas,r8a7792-rst" (R-Car V2H
		  - "renesas,r8a7793-rst" (R-Car M2-N)
		  - "renesas,r8a7794-rst" (R-Car E2)
  - reg: Address start and address range for the device.


Example:

	rst: reset-controller@e6160000 {
		compatible = "renesas,r8a7743-rst";
		reg = <0 0xe6160000 0 0x100>;
	};
