use amo's version of the small footer on webapps

templates/amo_footer_small.html

@@ -1,7 +1,7 @@
 <div id="footer" class="footer-condensed" role="contentinfo">
   <div class="footer-wrap">
     <div class="section">
-      {% include "global/copyright.html" %}
+      {% include "copyright.html" %}
     </div>
   </div>
 </div>