MAINTAINERS: add the Renesas X9250 driver entry

After contributing the driver, add myself as the maintainer for the
Renesas X9250 IIO driver.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20230509160852.158101-4-herve.codina@bootlin.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

MAINTAINERS

@@ -18034,6 +18034,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/clock/renesas,versaclock7.yaml
 F:	drivers/clk/clk-versaclock7.c
 
+RENESAS X9250 DIGITAL POTENTIOMETERS DRIVER
+M:	Herve Codina <herve.codina@bootlin.com>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml
+F:	drivers/iio/potentiometer/x9250.c
+
 RESET CONTROLLER FRAMEWORK
 M:	Philipp Zabel <p.zabel@pengutronix.de>
 S:	Maintained