Use cord-3.0 branch

Change-Id: Ifb0a6f59dc66cae3fea7853d190b0c58d8929cf3
diff --git a/default.xml b/default.xml
index 86a768b..4522af9 100644
--- a/default.xml
+++ b/default.xml
@@ -4,8 +4,8 @@
   <remote  name="opencord"
            fetch=".."
            review="https://gerrit.opencord.org/"
-           revision="master" />
-  <default revision="master"
+           revision="cord-3.0" />
+  <default revision="cord-3.0"
            remote="opencord"
            sync-j="4" />