update formula to run on centos

stats_socket need to be changed for centos

Change-Id: Ia58d2ee8e00d157cdc6d58d4cd18a95d6f26e867
diff --git a/haproxy/map.jinja b/haproxy/map.jinja
index 8649956..2fdb2b3 100644
--- a/haproxy/map.jinja
+++ b/haproxy/map.jinja
@@ -7,6 +7,6 @@
     'RedHat': {
         'pkgs': ['haproxy'],
         'service': 'haproxy',
-        'stats_socket': '/run/haproxy/admin.sock',
+        'stats_socket': '/var/lib/haproxy/stats',
     },
 }, merge=salt['pillar.get']('haproxy:proxy')) %}