PXA3xx GCU Controller
---------------------

Required properties:
 - compatible : "marvell,pxa300-gcu"
 - reg : should contain the register range (address and length).
 - interrupts : Controller interrupt.
 - clocks: phandle to the PXA specific input clock.

Example for PXA300:

	display-controller@54000000 {
		compatible = "marvell,pxa300-gcu";
		reg = <0x54000000 0x1000>;
		interrupts = <39>;
		clocks = <&clks CLK_PXA300_GCU>;
	};