Update path to be absolute instead of relative 

Staged:
http://akassay.nyc.corp.google.com:8080/reference/packages.html?tenant=android

b/28560594


Change-Id: I7a13aebf0932a8a37fcc09bad4dcbe4cc5252bb3
diff --git a/tools/droiddoc/templates-sdk-dev/yaml_navtree.cs b/tools/droiddoc/templates-sdk-dev/yaml_navtree.cs
index b4a6406..e5a6404 100644
--- a/tools/droiddoc/templates-sdk-dev/yaml_navtree.cs
+++ b/tools/droiddoc/templates-sdk-dev/yaml_navtree.cs
@@ -8,7 +8,7 @@
 each:page = docs.pages?><?cs
   if:page.type == "package"?>
 - title: <?cs var:page.label ?>
-  path: <?cs var:page.link ?>
+  path: /<?cs var:page.link ?>
   status_text: apilevel-<?cs var:page.apilevel ?><?cs
   /if?><?cs
 /each ?>