i2c Controller on XScale platforms such as IOP3xx and IXP4xx

Required properties:
- compatible : Must be one of
  "intel,iop3xx-i2c"
  "intel,ixp4xx-i2c";
- reg
- #address-cells = <1>;
- #size-cells = <0>;

Optional properties:
- Child nodes conforming to i2c bus binding

Example:

i2c@c8011000 {
	compatible = "intel,ixp4xx-i2c";
	reg = <0xc8011000 0x18>;
	interrupts = <33 IRQ_TYPE_LEVEL_LOW>;
};
