[Build] Update submodules to remote tip only on non-maintenance branches#3308

HannesWell wants to merge 1 commit intoeclipse-platform:mastereclipse-platform/eclipse.platform.releng.aggregator:masterfrom

HannesWell:dont-update-maintanance-branches-to-remoteHannesWell/eclipse.platform.releng.aggregator:dont-update-maintanance-branches-to-remoteCopy head branch name to clipboard