MAINTAINERS: add maintainer for ADA4250 driver

Add myself as maintainer for the ADA4250 driver.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20220223120112.8067-3-antoniu.miclaus@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

MAINTAINERS

@@ -1109,6 +1109,14 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/i2c/ad9389b*
 
+ANALOG DEVICES INC ADA4250 DRIVER
+M:	Antoniu Miclaus <antoniu.miclaus@analog.com>
+L:	linux-iio@vger.kernel.org
+S:	Supported
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml
+F:	drivers/iio/amplifiers/ada4250.c
+
 ANALOG DEVICES INC ADGS1408 DRIVER
 M:	Mircea Caprioru <mircea.caprioru@analog.com>
 S:	Supported