[U-Boot] mkconfig "arch" link generation

Hi,

I'm updating my uboot to mainline and I have a question about a link generate from mkconfig (with mpc5121_config). Follwing link in "include/asm", I found a link named "arch" genarated by mkconfig. This is broken so point to "arch-mpc512x" instead of "arch/powerpc/cpu/mpc512x". Result is "#include <asm/arch/asm-offsets.h>" or similar are be broken.

How is the correct way to modify mkconfig? I don't understand mean of link points "arch-mpc512x".

Regards,

Matteo Facchinetti