dt-bindings: iio: imu: bmi160: add boolean type for drive-open-drain

Add missing type description "boolean" for the drive-open-drain property.

Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20241219234745.58723-2-vassilisamir@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: vamoirid

Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml

@@ -37,6 +37,7 @@ properties:
       to "INT2" if INT2 pin should be used instead
 
   drive-open-drain:
+    type: boolean
     description: |
       set if the specified interrupt pin should be configured as
       open drain. If not set, defaults to push-pull.