dt-bindings: dma: qcom,gpi: document the SDX75 GPI DMA Engine

Document the GPI DMA Engine on the SDX75 Platform.
Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240517100423.2006022-2-quic_rohiagar@quicinc.comSigned-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/dma/qcom,gpi.yaml

@@ -27,6 +27,7 @@ properties:
               - qcom,qcm2290-gpi-dma
               - qcom,qdu1000-gpi-dma
               - qcom,sc7280-gpi-dma
+              - qcom,sdx75-gpi-dma
               - qcom,sm6115-gpi-dma
               - qcom,sm6375-gpi-dma
               - qcom,sm8350-gpi-dma