[coreboot-gerrit] Change in coreboot[master]: util/mtkheader: Port gen-bl-img.py to python3

[Yilin Yang (Code Review)]

Yilin Yang has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/45440 )

Change subject: util/mtkheader: Port gen-bl-img.py to python3
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Patch Set 3:
> Patch Set 3:
>
> Hi Kerker, can you add one more change?
>
> The util/mtkheader/description.md should be changed to 'Python3'.
>
> Aldo util/README.md __mtkheader__

I noticed that, but can we change them in single CL in one time ? Otherwise, we may conflict in README.md.