dt-bindings: mmc: sdhci-msm: document the Milos SDHCI Controller

Document the SDHCI Controller on the Milos SoC.

Signed-off-by: Luca Weiss <[e-mail]>
Acked-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

Documentation/devicetree/bindings/mmc/sdhci-msm.yaml

···
               - qcom,ipq5424-sdhci
               - qcom,ipq6018-sdhci
               - qcom,ipq9574-sdhci
+              - qcom,milos-sdhci
               - qcom,qcm2290-sdhci
               - qcom,qcs404-sdhci
               - qcom,qcs615-sdhci