add setting for XOS repo to use, update repo URL to use gerrit-hosted XOS
diff --git a/roles/xos-vm-install/defaults/main.yml b/roles/xos-vm-install/defaults/main.yml
index 9a29be2..ed946c4 100644
--- a/roles/xos-vm-install/defaults/main.yml
+++ b/roles/xos-vm-install/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 
-xos_repo_url: "https://github.com/open-cloud/xos.git"
+xos_repo_url: "https://gerrit.opencord.org/xos"
 xos_repo_dest: "~/xos"
 xos_repo_branch: "HEAD"