dt-bindings: thermal: ti,j72xx: 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-v1-20-554061b52fbc@linaro.orgSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml

@@ -22,6 +22,8 @@ description: |
   Temp(C) = (-9.2627e-12) * x^4 + (6.0373e-08) * x^3 + \
             (-1.7058e-04) * x^2 + (3.2512e-01) * x   + (-4.9003e+01)
 
+$ref: thermal-sensor.yaml#
+
 properties:
   compatible:
     enum:
@@ -64,9 +66,8 @@ required:
   - compatible
   - reg
   - power-domains
-  - "#thermal-sensor-cells"
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |