According to QUIP-18 [1], all doc snippet files should be
LicenseRef-Qt-Commercial OR BSD-3-Clause
[1]: https://contribute.qt-project.org/quips/18
Task-number: QTBUG-121787
Change-Id: I6e5bc9d05a5d510cc07a15abafe2257034562510
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
(cherry picked from commit 1dbc57ad0c7bb0ca9ffeb931c836f6f9791db12f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>