gluster: open ports 8080 and 38469

Port 8080 (for gluster swift service) and 38469 (for NFS's ACL
support) need to be opened in iptables for volume access.

Change-Id: I4fad72b17dfb6ebab57dd4b644c8315603ff74c8
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1024182
Signed-off-by: Bala.FA <barumuga@redhat.com>