ARM: dt: mvebu: ix4-300d: move partitions to partition sub-node

NAND flash partitions should be part of a partitions sub-node
not the flash node itself. Move the partitions which will also
allow different bootloaders get rid of the stock partitions
easily by removing the partitions node.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts

@@ -151,6 +151,10 @@ nand@d0000 {
 				marvell,nand-enable-arbiter;
 				nand-on-flash-bbt;
 
+				partitions {
+					#address-cells = <1>;
+					#size-cells = <1>;
+
 					partition@0 {
 						label = "u-boot";
 						reg = <0x0000000 0xe0000>;
@@ -186,6 +190,7 @@ partition@xE00000 {
 				};
 			};
 		};
+	};
 
 	gpio-keys {
 		compatible = "gpio-keys";