Realtek DDR Controller

Required properties:
- compatible: "realtek,rts3903-ddrc"
- reg: Address range of the DDR Controller registers

Example:

	ddrc: ddrc@0x18010000 {
		compatible = "realtek,rts3903-ddrc";
		reg = <0x18010000 0x100 0x18080000 0x100>;
		status = "disabled";
	};
