QTI UCSI binding

This binding describes the Qualcomm Technologies, Inc. UCSI device. UCSI
handles the communication between OPM on the Application processor and PPM
which is charger firmware running on the remote subsystem (e.g. DSP) over
PMIC Glink.

Refer to Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.txt for
information on "qcom,pmic_glink" device which is used in the example below.

- compatible:
	Usage: required
	Value type: <stringlist>
	Definition: must be "qcom,ucsi-glink"

= EXAMPLE

&soc {
	qcom,pmic_glink {
		...
		qcom,ucsi {
			compatible = "qcom,ucsi-glink";
		};
		...
	};
};