[XS] Change in coreboot[main]: Documentation: Fix make rule for sphinx-autobuild

[Nicholas Chin (Code Review)]

Attention is currently required from: Václav Straka.

Nicholas Chin has posted comments on this change by Václav Straka. ( https://review.coreboot.org/c/coreboot/+/85833?usp=email )

Change subject: Documentation: Fix make rule for sphinx-autobuild
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
Also, considering that sphinx seems to want to move away from the generated makefile (Makefile.sphinx) https://github.com/sphinx-doc/sphinx/issues/5618#issuecomment-502415633 I wonder if it would make more sense to just drop Makefile.sphinx and directly call sphinx-build/sphinx-autobuild in `Documentation/Makefile`. The targets in Makefile.sphinx are just calling sphinx-(auto)build directly, so it's essentially just adding an extra step for no good reason.