dt-bindings: arm-smmu: document the support on Milos

Add compatible for smmu representing support on the Milos SoC.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250713-sm7635-fp6-initial-v2-1-e8f9a789505b@fairphone.com
Signed-off-by: Will Deacon <will@kernel.org>

Author: lweiss-fairphone

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

@@ -35,6 +35,7 @@ properties:
       - description: Qcom SoCs implementing "qcom,smmu-500" and "arm,mmu-500"
         items:
           - enum:
+              - qcom,milos-smmu-500
               - qcom,qcm2290-smmu-500
               - qcom,qcs615-smmu-500
               - qcom,qcs8300-smmu-500
@@ -88,6 +89,7 @@ properties:
       - description: Qcom Adreno GPUs implementing "qcom,smmu-500" and "arm,mmu-500"
         items:
           - enum:
+              - qcom,milos-smmu-500
               - qcom,qcm2290-smmu-500
               - qcom,qcs615-smmu-500
               - qcom,qcs8300-smmu-500
@@ -534,6 +536,7 @@ allOf:
         compatible:
           items:
             - enum:
+                - qcom,milos-smmu-500
                 - qcom,sar2130p-smmu-500
                 - qcom,sm8550-smmu-500
                 - qcom,sm8650-smmu-500