Merge "dt-bindings: iommu: add qcom,testbus-version property"

		  we can choose to have a single ASID associated with all domains

		  for a context bank.

- qcom,testbus-version:

		  Testbus implementation is different in some hardware for eg some doesn't

		  have a separate register for programming tbu testbuses so, they share the

		  same register to program both tcu and tbu testbuses. on such hardware this

		  option can be used to specify the testbus version to support testbus interface.

		  Type is <u32>.

- clocks        : List of clocks to be used during SMMU register access. See

                  Documentation/devicetree/bindings/clock/clock-bindings.txt

                  for information about the format. For each clock specified