[PATCH v6] Add optimized Makefile support for SoCFPGA handoff

[Sune Brian]

> I'm sorry, but I don't think that's an appropriate response to me saying
> that if you're using an AI to generate any of this then you should
> disclose it.

I didn't generate any of this via AI. I just use AI to analyze the syntax cost
what you pointed out previously on the slow down.
I think there is a very distinct difference. Asking syntax vs telling AI to
generate the code is not the same. Otherwise any copy paste from
google is considered the same act.

However, I should not mention this in the first place because people are
so much trouble with AI tools these days. It is "voldemort" don;t say it's
name!

Back to the original issue.

Indeed $(src) is missing.
HANDOFF_BASE=$(src)/$$BOARD_DIR/hps_isw_handoff;
and
python3 $(src)/tools/cv_bsp_generator/cv_bsp_generator.py

With the above fix it should run smoothly w/o the issue you pointed out.

So you will insist me to move it to arch/arm/mach-socfpga/config.mk?

Brian