Fix the autotest on Mac

Don't hit the scrollbar with the mouse click

Change-Id: Ie82d8c5c058df9a482e7d5de2fe40681572f19ad
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

tests/auto/widgets/itemviews/qlistview/tst_qlistview.cpp

@@ -1221,7 +1221,7 @@ void tst_QListView::scrollTo()
     list << "Short item";
     model.setStringList(list);
     lv.setModel(&model);
-    lv.setFixedSize(100, 200);
+    lv.setFixedSize(110, 200);
     topLevel.show();
     QVERIFY(QTest::qWaitForWindowExposed(&topLevel));