dt-bindings: hwmon: chipcap2: Add label property

Add support for an optional label property similar to other hwmon devices.
This allows, in case of boards with multiple CHIPCAP2 sensors, to assign
distinct names to each instance.

Signed-off-by: Flaviu Nistor <flaviu.nistor@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260625160423.17882-1-flaviu.nistor@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/hwmon/amphenol,chipcap2.yaml

@@ -45,6 +45,8 @@ properties:
       - const: low
       - const: high
 
+  label: true
+
   vdd-supply:
     description:
       Dedicated, controllable supply-regulator to reset the device and
@@ -55,6 +57,9 @@ required:
   - reg
   - vdd-supply
 
+allOf:
+  - $ref: hwmon-common.yaml#
+
 additionalProperties: false
 
 examples:
@@ -72,6 +77,7 @@ examples:
                          <5 IRQ_TYPE_EDGE_RISING>,
                          <6 IRQ_TYPE_EDGE_RISING>;
             interrupt-names = "ready", "low", "high";
+            label = "Room";
             vdd-supply = <&reg_vdd>;
         };
     };