Fix *agent.ini for QoS extension

Replace incorrect "server" with "neutron" and
set correct OpenStack vesrion for tests.

Change-Id: Ie8c5bfe8ceaf82fed19e9cd5634c1e1ca9e86ccc
diff --git a/tests/pillar/gateway_qos.sls b/tests/pillar/gateway_qos.sls
index 0447011..fea882e 100644
--- a/tests/pillar/gateway_qos.sls
+++ b/tests/pillar/gateway_qos.sls
@@ -22,4 +22,4 @@
     metadata:
       host: 127.0.0.1
       password: password
-    version: mitaka
+    version: ocata