dt-bindings: display/msm/gpu: fix the schema being not applied

dtschema v2024.4, v2024.5 and maybe earlier do not select device nodes for
given binding validation if the schema contains compatible list with
pattern and a const fallback.  This leads to binding being a no-op - not
being applied at all.  Issue should be fixed in the dtschema but for now
add a work-around do the binding can be used against DTS validation.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/600507/
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240623-qcom-adreno-dts-bindings-driver-v2-4-9496410de992@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/gpu.yaml

@@ -10,6 +10,18 @@ title: Adreno or Snapdragon GPUs
 maintainers:
   - Rob Clark <robdclark@gmail.com>
 
+# dtschema does not select nodes based on pattern+const, so add custom select
+# as a work-around:
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - qcom,adreno
+          - amd,imageon
+  required:
+    - compatible
+
 properties:
   compatible:
     oneOf: