dt-bindings: firmware: qcom,scm: document IPQ5018 compatible

It seems that IPQ5018 compatible was never documented in the bindings.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230816164641.3371878-3-robimarko@gmail.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/firmware/qcom,scm.yaml

@@ -24,6 +24,7 @@ properties:
           - qcom,scm-apq8064
           - qcom,scm-apq8084
           - qcom,scm-ipq4019
+          - qcom,scm-ipq5018
           - qcom,scm-ipq5332
           - qcom,scm-ipq6018
           - qcom,scm-ipq806x