* Hdcp driver to provide transport between display driver and TZ

Required properties:
- compatible : Should be "qcom,hdcp"
- qcom,use-smcinvoke : indicates if driver support smcinvoke for kernel to tz communication.

Example:
	qcom,hdcp {
		compatible = "qcom,hdcp";
		qcom,use-smcinvoke = <1>;
	};
