[M] Change in flashrom[main]: Makefile,meson.build: Add support for Sphinx versions prior to 4.x

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Anton Samsonov, Anton Samsonov, Thomas Heijligen.

Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/77778?usp=email )

Change subject: Makefile,meson.build: Add support for Sphinx versions prior to 4.x
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Patch Set 7: Code-Review+2

(2 comments)

Patchset:

PS7: 
I downloaded patch locally, and it works as expected (which is, as before) for version 4.3.2

File doc/sphinx-wrapper.sh:

https://review.coreboot.org/c/flashrom/+/77778/comment/04cda7a7_db156890 :
PS5, Line 14:
> Done

That's a really good comment!