dt-bindings: arm-smmu: Add sm8350 compatible string

Add compatible string for sm8350 iommu to documentation.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210115090322.2287538-1-vkoul@kernel.orgSigned-off-by: Will Deacon <will@kernel.org>

Documentation/devicetree/bindings/iommu/arm,smmu.yaml

@@ -38,6 +38,7 @@ properties:
               - qcom,sdm845-smmu-500
               - qcom,sm8150-smmu-500
               - qcom,sm8250-smmu-500
+              - qcom,sm8350-smmu-500
           - const: arm,mmu-500
       - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
         items: