board: ls2085aqds: Update kernel_size env variable

kernel_size env variable is defined as 0x28000000, it is beyond NOR
flash range. Update kernel_size with 40MB kernel size.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
1 file changed