MAINTAINERS: uDPU: add remaining Methode boards

Methode also has eDPU which is based on uDPU, so add eDPU as well
as the common uDPU DTSI.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

MAINTAINERS

@@ -13849,7 +13849,8 @@ F:	drivers/staging/media/meson/vdec/
 METHODE UDPU SUPPORT
 M:	Robert Marko <robert.marko@sartura.hr>
 S:	Maintained
-F:	arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
+F:	arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
+F:	arch/arm64/boot/dts/marvell/armada-3720-uDPU.*
 
 MHI BUS
 M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>