Use branch cord-1.0 when checking out XOS and services. Do not cherry-pick this back to master

Change-Id: Ib95595241b548602ef21e8d055d96d021b26fd7e
diff --git a/common/Makedefs.branches b/common/Makedefs.branches
index 3522ac4..7aef8f3 100644
--- a/common/Makedefs.branches
+++ b/common/Makedefs.branches
@@ -1,4 +1,4 @@
-BRANCH=master
+BRANCH=cord-1.0
 
 XOS_BRANCH=$(BRANCH)
 EXAMPLESERVICE_BRANCH=$(BRANCH)