dt-bindings: arm-smmu: document the support on SA8255p

Add compatible for smmu representing support on SA8255p.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Link: https://lore.kernel.org/r/20240905193656.3785537-1-quic_nkela@quicinc.comSigned-off-by: Will Deacon <will@kernel.org>

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

@@ -37,6 +37,7 @@ properties:
           - enum:
               - qcom,qcm2290-smmu-500
               - qcom,qdu1000-smmu-500
+              - qcom,sa8255p-smmu-500
               - qcom,sa8775p-smmu-500
               - qcom,sc7180-smmu-500
               - qcom,sc7280-smmu-500
@@ -84,6 +85,7 @@ properties:
         items:
           - enum:
               - qcom,qcm2290-smmu-500
+              - qcom,sa8255p-smmu-500
               - qcom,sa8775p-smmu-500
               - qcom,sc7280-smmu-500
               - qcom,sc8180x-smmu-500
@@ -553,6 +555,7 @@ allOf:
               - marvell,ap806-smmu-500
               - nvidia,smmu-500
               - qcom,qdu1000-smmu-500
+              - qcom,sa8255p-smmu-500
               - qcom,sc7180-smmu-500
               - qcom,sdm670-smmu-500
               - qcom,sdm845-smmu-500