Install virtuaenv pkg

Change-Id: Id23fd11993fc111710ca6d6acfa55eed1d32156a
diff --git a/tcp_tests/templates/shared-salt.yaml b/tcp_tests/templates/shared-salt.yaml
index 1535db6..775faad 100644
--- a/tcp_tests/templates/shared-salt.yaml
+++ b/tcp_tests/templates/shared-salt.yaml
@@ -380,6 +380,7 @@
   cmd: |
     set -e;
     set -x;
+    sudo apt-get install virtualenv -y
     sudo apt-get install python-setuptools -y
 
     [[ -d /root/venv-reclass-tools ]] || virtualenv /root/venv-reclass-tools;