media: MAINTAINERS: Fix sort order for RDACM20

The files maintained as part of the RDACM20 were incorrectly sorted
while they were added.

Correct the sort-order.

Fixes: 34009bf ("media: i2c: Add RDACM20 driver")
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Author: kbingham

MAINTAINERS

@@ -14562,9 +14562,9 @@ M:	Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/media/i2c/imi,rdacm2x-gmsl.yaml
-F:	drivers/media/i2c/rdacm20.c
 F:	drivers/media/i2c/max9271.c
 F:	drivers/media/i2c/max9271.h
+F:	drivers/media/i2c/rdacm20.c
 
 RDC R-321X SoC
 M:	Florian Fainelli <florian@openwrt.org>