dt-bindings: thermal: socionext,uniphier: reference thermal-sensor schema

Device is a thermal sensor and it requires '#thermal-sensor-cells', so
reference the thermal-sensor.yaml to simplify it and bring the
common definition of '#thermal-sensor-cells' property.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240705-dt-bindings-thermal-allof-v1-16-554061b52fbc@linaro.orgSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Documentation/devicetree/bindings/thermal/socionext,uniphier-thermal.yaml

@@ -14,6 +14,8 @@ description: |
 maintainers:
   - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
 
+$ref: thermal-sensor.yaml#
+
 properties:
   compatible:
     enum:
@@ -38,9 +40,8 @@ properties:
 required:
   - compatible
   - interrupts
-  - "#thermal-sensor-cells"
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |