configs: at91: at91sam9x5ek: fix bootcmd for NAND flash

The default bootcommand needs to be accurate w.r.t the nand memory map
at http://www.at91.com/linux4sam/bin/view/Linux4SAM/AT91sam9x5ekMainPage#NAND_Flash_demo_Memory_map

Updated to load kernel + dtb at right offsets and boot the zImage.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
1 file changed