CORD-2858 adding xos-api-test make target

Change-Id: Ia2b6ffcc37dbbd1ad88abec67366e4b26d7608f1
diff --git a/scripts/cord-bootstrap.sh b/scripts/cord-bootstrap.sh
index b6121c2..a434252 100755
--- a/scripts/cord-bootstrap.sh
+++ b/scripts/cord-bootstrap.sh
@@ -55,7 +55,7 @@
     sudo apt-get update
     sudo apt-get -y install apt-transport-https build-essential curl git python-dev \
                             python-netaddr python-pip software-properties-common sshpass
-    sudo pip install gitpython graphviz "Jinja2>=2.9"
+    sudo pip install gitpython graphviz "Jinja2>=2.9" virtualenv
     sudo apt-add-repository -y ppa:ansible/ansible  # latest supported version
     sudo apt-get update
     sudo apt-get install -y ansible