ARM: dts: use all remaining MTD space foor rootfs of Iomega ix2-200

The original MTD partition layout for the Iomega ix2-200 leaves most of the
available space unused. This patch changes the layout to use all remaining
MTD space after the partitions for u-boot/u-boot-env and the kernel uimage
as a "rootfs" partition.
Signed-off-by: Richard Kunze <richard.kunze@web.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>

arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts

@@ -192,8 +192,8 @@ partition@100000 {
 	};
 
 	partition@400000 {
-		label = "uInitrd";
-		reg = <0x540000 0x1000000>;
+		label = "rootfs";
+		reg = <0x400000 0x1C00000>;
 	};
 };