Add posibility to configure SyslogFacility

Change-Id: Ibf611ccb1aca641d3d302ad07fcfa01171381b96
diff --git a/tests/pillar/server.sls b/tests/pillar/server.sls
index ccfcbcb..4bdf62b 100644
--- a/tests/pillar/server.sls
+++ b/tests/pillar/server.sls
@@ -13,6 +13,7 @@
   server:
     enabled: true
     use_dns: yes
+    syslog_facility: auth
     user:
       testusername:
         enabled: true