[U-Boot] orangepi_pc2: Build error

Hi Andre,

Can you check this error on master?

COPY spl/u-boot-spl.bin MKSUNXI spl/sunxi-spl.bin ERROR: File too large! make[1]: *** [spl/sunxi-spl.bin] Error 1 make: *** [spl/u-boot-spl] Error 2

thanks!