twrpme: fix commontree variable

Change-Id: I02cee3b1474838a0c48ceedd82c087443ac3c9d5
diff --git a/_includes/supportstatus.html b/_includes/supportstatus.html
index 1c568d9..dea613d 100644
--- a/_includes/supportstatus.html
+++ b/_includes/supportstatus.html
@@ -4,7 +4,7 @@
 <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>
+<p class="text"><a href="{{ page.commontree }}">Common Tree / files</a></p>
 {% endif %}
 {% if page.devicetree %}
 <p class="text"><a href="{{ page.devicetree }}">Device Tree / files</a></p>