dt-bindings: arm: qcom: Add MSM8976 BQ Aquaris X5 Plus

BQ Aquaris X5 Plus (Longcheer L9360) is a smartphone based on MSM8976
SoC.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250615-bqx5plus-v2-2-72b45c84237d@apitzsch.eu
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: André Apitzsch

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -230,6 +230,11 @@ properties:
           - const: qcom,msm8974pro
           - const: qcom,msm8974
 
+      - items:
+          - enum:
+              - longcheer,l9360
+          - const: qcom,msm8976
+
       - items:
           - enum:
               - acer,a1-724