dt-bindings: arm: qcom: Document SM8750 SoC and boards

Document the SM8750 SoC binding and the boards which use it.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241204-sm8750_master_dt-v3-1-4d5a8269950b@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -98,6 +98,7 @@ description: |
         sm8450
         sm8550
         sm8650
+        sm8750
         x1e78100
         x1e80100
         x1p42100
@@ -1108,6 +1109,12 @@ properties:
               - qcom,sm8650-qrd
           - const: qcom,sm8650
 
+      - items:
+          - enum:
+              - qcom,sm8750-mtp
+              - qcom,sm8750-qrd
+          - const: qcom,sm8750
+
       - items:
           - enum:
               - qcom,x1e001de-devkit