Add jd_lists_unified.cs to sac, pdk, ds templates.

Change-Id: I4d3216018932e0482e20f01c944429e0a7ccee65
diff --git a/tools/droiddoc/templates-ds/jd_lists_unified.cs b/tools/droiddoc/templates-ds/jd_lists_unified.cs
new file mode 100644
index 0000000..417a5c1
--- /dev/null
+++ b/tools/droiddoc/templates-ds/jd_lists_unified.cs
@@ -0,0 +1 @@
+<?cs var:reference_tree ?>
diff --git a/tools/droiddoc/templates-pdk/jd_lists_unified.cs b/tools/droiddoc/templates-pdk/jd_lists_unified.cs
new file mode 100644
index 0000000..417a5c1
--- /dev/null
+++ b/tools/droiddoc/templates-pdk/jd_lists_unified.cs
@@ -0,0 +1 @@
+<?cs var:reference_tree ?>
diff --git a/tools/droiddoc/templates-sac/jd_lists_unified.cs b/tools/droiddoc/templates-sac/jd_lists_unified.cs
new file mode 100644
index 0000000..417a5c1
--- /dev/null
+++ b/tools/droiddoc/templates-sac/jd_lists_unified.cs
@@ -0,0 +1 @@
+<?cs var:reference_tree ?>