VIA/Wondermedia VT8500 EHCI Controller
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Required properties:
- compatible : "via,vt8500-ehci"
- reg : Should contain 1 register ranges(address and length)
- interrupts : ehci controller interrupt

Example:

	ehci@d8007900 {
		compatible = "via,vt8500-ehci";
		reg = <0xd8007900 0x200>;
		interrupts = <43>;
	};
