dt-bindings: thermal: sdpm: Add SDPM clock monitor bindings

Simple Digital Power Meter(SDPM) clock monitoring.

SDPM is used to monitor the operating frequency of different clocks and based

on operating levels of different clients, the Policy Engine will recommend a

new max operating level. The SDPM driver will register with the clock

framework for rate change notification of different clocks. These clock rate

will be updated to SDPM.

Properties:

- compatible:

	Usage: required

	Value type: <string>

	Definition: should be "qcom,sdpm"

- reg:

	Usage: required

	Value type: <u32>

	Definition: RDPM base address.

- clocks:

	Usage: required

	Value type: <prop-encoded-array>

	Definition: A List of phandle and clock specifier pairs as listed

			in clock-names property.

- clock-names:

	Usage: required

	Value type: <stringlist>

	Definition: List of clock names matching the clock order mentioned in

			the clocks property.

- cpu:

	Usage: optional

	Value type: <CPU phandle>

	Definition: The CPU for which the clock changes should be monitored.

- csr-id:

	Usage: required

	Value type: <array of u32>

	Definition: Array of CSR ID matching the clock order mentioned in the

			clocks property. The last ID can be the CSR

			corresponding to the CPU that needs to be monitored.

Example:

cx_sdpm@0x00634000 {

	compatible = "qcom,sdpm";

	reg = <0x00634000 0x1000>;

	clock-names = "cam_cc", "compo_aux";

	clocks = <&clock_camcc CAM_CC_IPE_0_CLK_SRC>,

		<&clk_m_a2_div1 CLK_M_COMPO_AUX>;

	cpu = <&CPU7>;

	csr-id = <5 7 4>;

	//CSR 5 <=> cam_cc

	//CSR 7 <=> compo_aux

	//CSR 4 <=> CPU7

};