MAINTAINERS: Update AD7192 driver maintainer

Alexandru Tachici has not been active. Also the email address included
is not reachable anymore. I was assigned to work on the driver instead.

Remove Alexandru Tachici and add myself as maintainer of AD7192 driver.
Signed-off-by: Alisa-Dariana Roman <alisa.roman@analog.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20240624124941.113010-7-alisa.roman@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

MAINTAINERS

@@ -1217,7 +1217,7 @@ F:	Documentation/devicetree/bindings/iio/adc/adi,ad7091r*
 F:	drivers/iio/adc/ad7091r*
 
 ANALOG DEVICES INC AD7192 DRIVER
-M:	Alexandru Tachici <alexandru.tachici@analog.com>
+M:	Alisa-Dariana Roman <alisa.roman@analog.com>
 L:	linux-iio@vger.kernel.org
 S:	Supported
 W:	https://ez.analog.com/linux-software-drivers