Change in coreboot[master]: Documentation/releases: Update 4.15 release notes

[Patrick Georgi (Code Review)]

Attention is currently required from: Tim Crawford, Martin Roth, Jason Glenesk.
Patrick Georgi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/58422 )

Change subject: Documentation/releases: Update 4.15 release notes
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Patch Set 3:

(1 comment)

File Documentation/releases/coreboot-4.15-relnotes.md:

https://review.coreboot.org/c/coreboot/+/58422/comment/08e55dff_d863dc16 
PS3, Line 6: 2292 new commits by 222 developers.
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> We'll want to update these right before the release. […]

I'd still get this in though to avoid conflicts with other additions to the release notes (Gerrit claims that CB:58521 would conflict with this). The very latest numbers can still make it in just before release (and there's little conflict potential in this second paragraph as nobody else should touch it)