Bump qtmacextras version to 5.2.0
Bump qtmacextras version to 5.2.0

Change-Id: I6e1f329b2d4bcf6b54a9db078c5f7064224e8480
Reviewed-by: Morten Johan Sørvig <84fe11dd8bf63b99760f9a020e6b4a145681baec@digia.com>
Reviewed-by: Jani Heikkinen <2b9ec7ffaab7704ea5de97a2bb0e3c04e80113f6@digia.com>
Reviewed-by: Gabriel de Dietrich <57b5c683f0b6abfc17ef151d5b68c8944258b63a@digia.com>

kobolabs/qtmacextras,kobolabs/qtmacextras