Add a Q_ENUMS for MeasurementSystem

Change-Id: Ib60de407f7ec8df907884ad2cf2fbf8e7b2c02f4
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

src/corelib/tools/qlocale.h

@@ -67,6 +67,7 @@ class Q_CORE_EXPORT QLocale
     Q_GADGET
     Q_ENUMS(Language)
     Q_ENUMS(Country)
+    Q_ENUMS(MeasurementSystem)
     friend class QString;
     friend class QByteArray;
     friend class QIntValidator;