Change in flashrom[master]: Add support for IS25WQ040

[Felix Singer (Code Review)]

Attention is currently required from: Vasily Galkin, Thomas Heijligen, [e-mail].
 Felix Singer has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58179 )

Change subject: Add support for IS25WQ040
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Patch Set 1:

(4 comments)

Commit Message:

https://review.coreboot.org/c/flashrom/+/58179/comment/348d3a10_d5d632f4 
PS1, Line 7: Add support for IS25WQ040
Add `flashchips.c: ` before that

https://review.coreboot.org/c/flashrom/+/58179/comment/78782ed9_00e4dfe9 
PS1, Line 10: 	Signed-off-by: Roman Stingler  
Put the Sign-offs after the line with the Change-Id. This one should come first.

https://review.coreboot.org/c/flashrom/+/58179/comment/c533e841_6842ed9f 
PS1, Line 11: 
Add a link to the datasheet.

https://review.coreboot.org/c/flashrom/+/58179/comment/769020a9_1f3f5322 
PS1, Line 12: 
Did you test it? How? Which programmer did you use?