ARM: dts: at91: sama5d4_xplained: even nand memory partitions

sama5d4_xplained, ssam9x5cm, sama5d2_ptc_ek and sama5d3_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/at91-sama5d4_xplained.dts

@@ -232,12 +232,17 @@ at91bootstrap@0 {
 
 						bootloader@40000 {
 							label = "bootloader";
-							reg = <0x40000 0x80000>;
+							reg = <0x40000 0xc0000>;
 						};
 
-						bootloaderenv@c0000 {
+						bootloaderenvred@100000 {
+							label = "bootloader env redundant";
+							reg = <0x100000 0x40000>;
+						};
+
+						bootloaderenv@140000 {
 							label = "bootloader env";
-							reg = <0xc0000 0xc0000>;
+							reg = <0x140000 0x40000>;
 						};
 
 						dtb@180000 {