FXL6408 I2C to GPIO expander bindings

Example:
/* Connect the GPIO expander to I2C1 */
&i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_gpio44>;

	gpio_expander: gpio@43 {
		gpio-controller;
		#gpio-cells = <2>;
		reg = <0x43>;
		compatible = "fcs,fxl6408";
	};
};

