dt-bindings: trivial-devices: Document SEN0322

Add documentation for the DFRobot SEN0322 oxygen sensor.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tóth János <gomba007@gmail.com>
Link: https://patch.msgid.link/20250506-iio-chemical-sen0322-v4-1-1465ac8dc190@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: g0mb4

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -85,6 +85,8 @@ properties:
           - devantech,srf08
             # Devantech SRF10 ultrasonic ranger
           - devantech,srf10
+            # DFRobot SEN0322 oxygen sensor
+          - dfrobot,sen0322
             # DH electronics GmbH on-board CPLD trivial SPI device
           - dh,dhcom-board
             # DA9053: flexible system level PMIC with multicore support