dt-bindings: arm-smmu: Add sm8150 and sm8250 compatible strings

Add compatible strings for sm8150 and sm8250 iommus to documentation.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200609194030.17756-2-jonathan@marek.caSigned-off-by: Will Deacon <will@kernel.org>

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

@@ -37,6 +37,8 @@ properties:
           - enum:
               - qcom,sc7180-smmu-500
               - qcom,sdm845-smmu-500
+              - qcom,sm8150-smmu-500
+              - qcom,sm8250-smmu-500
           - const: arm,mmu-500
       - items:
           - const: arm,mmu-500