Add doc/arm/notes-9.11.29.xml to util/copyrights
Commit 81446d61 did not update util/copyrights as it should have. Add the missing line to prevent the "misc" GitLab CI job from failing.
Commit 81446d61 did not update util/copyrights as it should have. Add the missing line to prevent the "misc" GitLab CI job from failing.