SKY81452 voltage regulator

Required properties:
- regulator node named lout.
- any required generic properties defined in regulator.txt

Optional properties:
- any available generic properties defined in regulator.txt

Example:

	regulator {
		lout {
			regulator-name = "sky81452-lout";
			regulator-min-microvolt = <4500000>;
			regulator-max-microvolt = <8000000>;
		};
	};