dt-bindings: arm-smmu: Add compatible for SM8450 SoC

Add the SoC specific compatible for SM8450 implementing
arm,mmu-500.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211201073943.3969549-2-vkoul@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

Author: vinodkoul

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

@@ -43,6 +43,7 @@ properties:
               - qcom,sm8150-smmu-500
               - qcom,sm8250-smmu-500
               - qcom,sm8350-smmu-500
+              - qcom,sm8450-smmu-500
           - const: arm,mmu-500
       - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
         items: