Update qmldir files

Change-Id: I0498c939781da5e81cc2788f92c41d0488126f6e
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Update all plugins.qmltypes files

Task-number: QTBUG-31388

Change-Id: I737d2520f6821cb43b3438b0a11fc8a7f6b57dbc
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>