Make haproxy.pp honor EnableInternalTLS for rgw

haproxy.pp assumes that Ceph rgw instances cannot be SSL
encrypted and generates invalid haproxy configuration files
in setups where EnableInternalTLS is set to true.

This patch makes haproxy.pp honor EnableInternalTLS and
include internal_tls_member_options in the member_options
for Ceph rgw instances.

Change-Id: If59a27b28eb61ab2c1ff84f5047261e8695234d4
Closes-Bug: #1883296
(cherry picked from commit 436bfaa158)

manifests/haproxy.pp

@@ -1577,6 +1577,7 @@ class tripleo::haproxy (
       public_ssl_port   => $ports[ceph_rgw_ssl_port],
       service_network   => $ceph_rgw_network,
       listen_options    => merge($default_listen_options, { 'option' => [ 'httpchk GET /' ] }),
+      member_options    => union($haproxy_member_options, $internal_tls_member_options),
     }
   }