Merge "documentation: devicetree: Update coresight documention for funnel"

	* qcom,inst-id: must be present. QMI instance id for remote ETMs.

* Optional properties for funnels:

	* qcom,duplicate-funnel: boolean, indicates its a duplicate of an

	  existing funnel. Funnel devices are now capable of supporting

	  multiple-input and multiple-output configuration with in built

	  hardware filtering for TPDM devices. Each set of input-output

	  combination is treated as independent funnel device.

	  funnel-base-dummy and funnel-base-real reg-names must be specified

	  when this property is enabled.

	* reg-names: funnel-base-dummy: dummy register space used by a

	  duplicate funnel. Should be a valid register address space that

	  no other device is using.

	* reg-names: funnel-base-real: actual register space for the

	  duplicate funnel.

Example:

1. Sinks