dt-bindings: arm: qcom: Add Milos and The Fairphone (Gen. 6)

Document the Milos-based The Fairphone (Gen. 6) smartphone.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20251210-sm7635-fp6-initial-v4-4-b05fddd8b45c@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -61,6 +61,11 @@ properties:
               - qcom,apq8084-sbc
           - const: qcom,apq8084
 
+      - items:
+          - enum:
+              - fairphone,fp6
+          - const: qcom,milos
+
       - items:
           - enum:
               - microsoft,dempsey