dt-bindings: iio: accel: adxl313: Add compatibles for adxl312 and adxl314

Extend the adi,adxl313.yaml file with information regrding the
ADXL312 and ADXL314 devices.
Signed-off-by: George Mois <george.mois@analog.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220905132018.364900-1-george.mois@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml

@@ -4,20 +4,24 @@
 $id: http://devicetree.org/schemas/iio/accel/adi,adxl313.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Analog Devices ADXL313 3-Axis Digital Accelerometer
+title: Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometers
 
 maintainers:
   - Lucas Stankus <lucas.p.stankus@gmail.com>
 
 description: |
-  Analog Devices ADXL313 3-Axis Digital Accelerometer that supports
-  both I2C & SPI interfaces.
+  Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometer that
+  support both I2C & SPI interfaces.
+    https://www.analog.com/en/products/adxl312.html
     https://www.analog.com/en/products/adxl313.html
+    https://www.analog.com/en/products/adxl314.html
 
 properties:
   compatible:
     enum:
+      - adi,adxl312
       - adi,adxl313
+      - adi,adxl314
 
   reg:
     maxItems: 1