Add Neutron/NSX plugin sanity check

Supports-blueprint: nvp-third-party-support (aka bp vmware-nsx-third-party)
Related-bug: #1265671

Change-Id: Ifa4e1d36b8735e81f24b8852103a9c433d736e84
diff --git a/lib/neutron_thirdparty/vmware_nsx b/lib/neutron_thirdparty/vmware_nsx
index 7c62027..4eb177a 100644
--- a/lib/neutron_thirdparty/vmware_nsx
+++ b/lib/neutron_thirdparty/vmware_nsx
@@ -79,7 +79,7 @@
 }
 
 function check_vmware_nsx() {
-    :
+    neutron-check-nsx-config $NEUTRON_CONF_DIR/plugins/vmware/nsx.ini
 }
 
 # Restore xtrace