multi daemon config support for node.pp

If swift::multi_daemon_config is set to true then change swift-recon
to use /etc/swift/object-server/1.conf instead of
/etc/swift/object-server.conf and add firewall rules for multi daemon
config.

New hiera variable introduced firewall::swift_rep_hosts

Change-Id: Ie3b670dfec1f924069bb49d1cf54cc43b6b2d39f