Android: Make ant less verbose

Change-Id: Idfd2510f2711be27219676bb843ab6e32b84c8e2
Reviewed-by: BogDan Vatra <bogdan@kde.org>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

src/plugins/android/androidpackagecreationstep.cpp

@@ -653,6 +653,7 @@ bool AndroidPackageCreationStep::createPackage()
     emit addOutput(tr("Copy Qt app & libs to Android package ..."), MessageOutput);
 
     QStringList build;
+    build << QLatin1String("-quiet");
     build << QLatin1String("clean");
     QFile::remove(m_gdbServerDestination.toString());
     if (m_signPackageForRun) {