Make sure activity is closed

If we don't call finish() before crashing the activity, then
the Activity Manager will just restart it.

Task-number: QTBUG-32079
Change-Id: I09623afe545c3f4e8b9be801ccfbe244059b270e
Reviewed-by: BogDan Vatra <bogdan@kde.org>

tests/auto/android/src/org/qtproject/qt5/android/QtActivity.java

@@ -121,6 +121,7 @@ public class QtActivity extends Activity {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 }
+                finish();
                 System.exit(0);
             }
             String[] libs = new String[libraryList.size()];