uboot-imx

ARM: socfpga: Fix Arria10 SPI and NAND U-Boot offset

The SPL size on Gen5 is 4*64kiB, but on A10 it is 4*256kiB.
Handle the difference.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>