[flashrom-gerrit] [L] Change in flashrom[main]: doc: Convert serprog docs to rst and add to doc directory

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: J. Neuschäfer, Riku Viitanen, Swift Geek (Sebastian Grzywna), Sydney, Thomas Heijligen, Urja Rannikko.

Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/82018?usp=email )

Change subject: doc: Convert serprog docs to rst and add to doc directory
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Patch Set 2:

(2 comments)

Patchset:

PS1:
> I could make a change for that ready as I know the projects well

Thank you that would be so helpful! I really appreciate.

I will keep this patch for another week maybe, in case other people join review. But docs can be updated at any time later, so no point to wait for too long.

I will also do a follow up patch later, to improve the index pages, but this also does not block anything.

File doc/supported_hw/supported_prog/serprog/overview.rst:

https://review.coreboot.org/c/flashrom/+/82018/comment/1a483e16_ff9d46c7 :
PS1, Line 83: See `the github page https://github.com/dword1511/serprog-stm32vcp#serprog-stm32vcp`_ for further details, source code etc.
> serprog-stm32vcp has been succeeded by stm32-vserprog of the same author

Thank you! I updated the doc.

I read the description of stm32-vserprog and it seems that `is built upon an ARM Cortex-M3 (STM32F103) featuring up to 36 MHz SPI clock` still applies, so I kept these words. Do you agree?