* Freescale Virtual I2C RPMSG bus driver for i.MX

Required properties:
- compatible :
  - "fsl,i2c-rpbus" for I2C bus over RPMSG compatible on i.MX8QXP/QM soc
The i2c-rpbus node should define its bus id (which is the node communicating
with M4) in alias.

Examples:

aliases {
	...
	i2c1 = &i2c_rpbus_1;
	...
};

&i2c_rpbus_1 {
	compatible = "fsl,i2c-rpbus";
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";

	devs_in_this_i2c_bus__for_example: pca6416@20 {
		compatible = "ti,tca6416";
		reg = <0x20>;
		gpio-controller;
		#gpio-cells = <2>;
	};
};