ARM: dts: msm: Add IOSS v2 driver bindings

Qualcomm Technologies Inc. IPA Offload Sub-System

IPA Offload Sub-system is a generic kernel framework that enables a

third-party ethernet driver to attach an ethernet peripheral to IPA

for hardware offloading of tethered data paths. The framework

provides a generic API interface that ethernet drivers can use to

register their hardware functionality with the sub-system in order

to enable IPA offload.

Required properties:

- compatible : should be "qcom,ioss-v2"

Example:

	ioss: qcom,ioss {

		compatible = "qcom,ioss-v2";

	};

Qualcomm Technologies Inc. IPA Offload Sub-System Device

IPA Offload Sub-system is a generic kernel framework that enables a

third-party ethernet driver to attach an ethernet peripheral to IPA

for hardware offloading of tethered data paths.

For each device attached to IOSS, we can define IPA offload data path

configuration through below devicetree properties.

Required properties:

- compatible : should be "qcom,ioss-v2-device"

- qcom,ioss : specify which IOSS platform device to be used

- qcom,ioss_interfaces : to specify interface names and its channel config

Example:

&pcie_rc1 {

	aqc_x2: qcom,aqc@1 {

		compatible = "qcom,ioss-v2-device";

		qcom,ioss = <&ioss>;

		qcom,ioss_interfaces =

			<&ioss_aqc_eth0>;

};