SOCIONEXT Milbeaut Updown

functions:
- updown counter, phase difference counter

Required properties:
- #address-cells:	Should be '<1>'.
- #size-cells:		Should be '<0>'.
- compatible:		Must be "socionext,milbeaut-updown".
- reg:				Offset and length of the device's register set.
- clocks:			Must be "rclk".
- clock-names:		Must be "mux".

Example:

	updown0: updown@1e002000 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "socionext,milbeaut-updown";
		reg = <0x1e002000 0x20>;
		clocks = <&rclk>;
		clock-names = "mux";

		counter {
			compatible = "socionext,milbeaut-updown-counter";
			interrupts = <0 104 0x4>;
			cms_type = <1>;
		};
	};
