Richtek RT1711H TypeC PD Controller.

Required properties:
 - compatible : Must be "richtek,rt1711h".
 - reg : Must be 0x4e, it's slave address of RT1711H.
 - interrupt-parent : the phandle for the interrupt controller that
   provides interrupts for this device.
 - interrupts : <a b> where a is the interrupt number and b represents an
   encoding of the sense and level information for the interrupt.

Example :
rt1711h@4e {
	compatible = "richtek,rt1711h";
	reg = <0x4e>;
	interrupt-parent = <&gpio26>;
	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
};
