Realtek Clock Controller

Required properties:
- compatible: Should be "realtek,rts3903-clocks" or "realtek,rts3913-clocks"
- reg: Address range of the clock registers
- #clock-cells: Should be 1

Example:

	clks: clks@18861000  {
		compatible = "realtek,rts3903-clocks";
		#clock-cells = <1>;
		reg = <0x18861000 0x1000 0x18864100 0x400>;
	};
