Fixed some issues in the container lists in the Makefile and in
containers.cfg. An obscure KVM bug was not digesting host-model
properly on some architectures causing a kernal panic on boot.
In order to work around that bug, host-passthrough will be used
until KVM is fixed in ubuntu16.04. This bug doesn't exist in
ubuntu14.

Change-Id: I7b99bd249ca3222d47cbc6a642177f7e6390049a
diff --git a/install/containers.cfg b/install/containers.cfg
index a097e12..be0409e 100644
--- a/install/containers.cfg
+++ b/install/containers.cfg
@@ -16,3 +16,4 @@
   - voltha/envoy:latest
   - registry:2
   - cord/fluentd
+  - voltha/tools