change default to checked so code doesn't have to set it

xwords4/android/XWords4/res/layout/game_config.xml

@@ -23,6 +23,7 @@
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="@string/game_locked"
+            android:checked="true"
             android:visibility="gone"
             android:layout_alignParentTop="true"
             />