Refactoring aodh apache site configuration

The patch changes apache site for aodh to work with regular
template for wsgi.

Change-Id: Ieece100db55fa964c9bddb6a3b665fc63ae0955e
diff --git a/tests/pillar/server_single.sls b/tests/pillar/server_single.sls
index 6fbb80d..a80acbe 100644
--- a/tests/pillar/server_single.sls
+++ b/tests/pillar/server_single.sls
@@ -40,3 +40,18 @@
       password: test
     notifications:
       store_events: default
+apache:
+  server:
+    enabled: true
+    default_mpm: event
+    mpm:
+      prefork:
+        enabled: true
+        servers:
+          start: 5
+          spare:
+            min: 2
+            max: 10
+        max_requests: 0
+        max_clients: 20
+        limit: 20