twrpme: add commontree option

Change-Id: I3f0c50ec82ffc49cedf7a090a4974e295b42a7cb
diff --git a/_includes/supportstatus.html b/_includes/supportstatus.html
index 13c7c7e..1c568d9 100644
--- a/_includes/supportstatus.html
+++ b/_includes/supportstatus.html
@@ -3,6 +3,9 @@
 <p class="text">Support Status: {{ page.supportstatus }}</p>
 <p class="text">Maintainer: {{ page.maintainer }}</p>
 <p class="text">Code Name: {{ page.codename }}</p>
+{% if page.commontree %}
+<p class="text"><a href="{{ page.devicetree }}">Common Tree / files</a></p>
+{% endif %}
 {% if page.devicetree %}
 <p class="text"><a href="{{ page.devicetree }}">Device Tree / files</a></p>
 {% endif %}