PFUZE100 family of regulators

Required properties:
- compatible: "fsl,pfuze100"
- reg: I2C slave address

Required child node:
- regulators: This is the list of child nodes that specify the regulator
  initialization data for defined regulators. Please refer to below doc
  Documentation/devicetree/bindings/regulator/regulator.txt.

  The valid names for regulators are:
  sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6

Each regulator is defined using the standard binding for regulators.

Example:

	pmic: pfuze100@08 {
		compatible = "fsl,pfuze100";
		reg = <0x08>;

		regulators {
			sw1a_reg: sw1ab {
				regulator-min-microvolt = <300000>;
				regulator-max-microvolt = <1875000>;
				regulator-boot-on;
				regulator-always-on;
				regulator-ramp-delay = <6250>;
			};

			sw1c_reg: sw1c {
				regulator-min-microvolt = <300000>;
				regulator-max-microvolt = <1875000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw2_reg: sw2 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <3300000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw3a_reg: sw3a {
				regulator-min-microvolt = <400000>;
				regulator-max-microvolt = <1975000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw3b_reg: sw3b {
				regulator-min-microvolt = <400000>;
				regulator-max-microvolt = <1975000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw4_reg: sw4 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <3300000>;
			};

			swbst_reg: swbst {
				regulator-min-microvolt = <5000000>;
				regulator-max-microvolt = <5150000>;
			};

			snvs_reg: vsnvs {
				regulator-min-microvolt = <1000000>;
				regulator-max-microvolt = <3000000>;
				regulator-boot-on;
				regulator-always-on;
			};

			vref_reg: vrefddr {
				regulator-boot-on;
				regulator-always-on;
			};

			vgen1_reg: vgen1 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1550000>;
			};

			vgen2_reg: vgen2 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1550000>;
			};

			vgen3_reg: vgen3 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
			};

			vgen4_reg: vgen4 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
				regulator-always-on;
			};

			vgen5_reg: vgen5 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
				regulator-always-on;
			};

			vgen6_reg: vgen6 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
				regulator-always-on;
			};
		};
	};