Merge "bindings: spmi: spmi-pmic-arb: define consumer qcom,pmic-arb property"

    cell 4: interrupt flags indicating level-sense information, as defined in

            dt-bindings/interrupt-controller/irq.h

Consumer node optional properties:

- qcom,pmic-arb : phandle for an spmi-pmic-arb device.  This can be used by

		  consumer devices that are not PMIC devices but which need to

		  reference an spmi-pmic-arb device.

Example:

	spmi {

	spmi_bus: spmi {

		compatible = "qcom,spmi-pmic-arb";

		reg-names = "core", "intr", "cnfg";

		reg = <0xfc4cf000 0x1000>,

		interrupt-controller;

		#interrupt-cells = <4>;

	};

	&display {

		qcom,pmic-arb = <&spmi_bus>;

	};