ARM: dts: at91: at91sam9x5cm: even nand memory partitions

sam9x5cm, sama5d2_ptc_ek, sama5d3_xplained and sama5d4_xplained nand
flashes have a common memory map. Even the nand memory partitions to
match our nand flash map available at:

http://www.at91.com/linux4sam/pub/Linux4SAM/SambaSubsections//demo_nandflash_map_lnx4sam5x.pngSigned-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>

arch/arm/boot/dts/at91sam9x5cm.dtsi

@@ -85,12 +85,22 @@ at91bootstrap@0 {
 
 						uboot@40000 {
 							label = "u-boot";
-							reg = <0x40000 0x80000>;
+							reg = <0x40000 0xc0000>;
 						};
 
-						ubootenv@c0000 {
+						ubootenvred@100000 {
+							label = "U-Boot Env Redundant";
+							reg = <0x100000 0x40000>;
+						};
+
+						ubootenv@140000 {
 							label = "U-Boot Env";
-							reg = <0xc0000 0x140000>;
+							reg = <0x140000 0x40000>;
+						};
+
+						dtb@180000 {
+							label = "device tree";
+							reg = <0x180000 0x80000>;
 						};
 
 						kernel@200000 {