Documentation: Fix 4.12 release notes, improve checklist

Since I seem to forget to remove "Upcoming" in the release notes
every single time, and others might as well, fix it here and also
tell future release managers to take care of that.

Change-Id: I8ffe34f25e954621bdd635e115a8b1a914df9c27
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41337
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions