Disables firewalld for Heat-deployed Fedora instances
Disables firewalld for Heat-deployed Fedora instances

Previously, Heat was deploying Fedora21 instances with firewalld
enabled and running. It is well documented that firewalld causes
problems with OpenStack Neutron. That is becasue Neutron uses
iptables instead of firewalld for security filtering.

Change-Id: I25cb32984841423a7b1c44b55cd19b5b4588c9e8

fdumpling/kolla,fdumpling/kolla,meticulo3366/kolla,limamauricio/mykolla,mandre/kolla,stackforge/kolla,mandre/kolla,rahulunair/kolla,brk3/kolla,brk3/kolla,limamauricio/mykolla,coolsvap/kolla,GalenMa/kolla,mandre/kolla,negronjl/kolla,chenzhiwei/kolla,mrangana/kolla,LoHChina/kolla,dardelean/kolla-ansible,chenzhiwei/kolla,rahulunair/kolla,intel-onp/kolla,GalenMa/kolla,jakedahn/kolla,jakedahn/kolla,negronjl/kolla,coolsvap/kolla,toby82/kolla,HackToday/kolla,LoHChina/kolla,HackToday/kolla,limamauricio/mykolla,openstack/kolla,nihilifer/kolla,dardelean/kolla-ansible,invenfantasy/kolla,tonyli71/kolla,stackforge/kolla,fdumpling/kolla,stackforge/kolla,negronjl/kolla,invenfantasy/kolla,HackToday/kolla,intel-onp/kolla,rajalokan/kolla,openstack/kolla,chenzhiwei/kolla,invenfantasy/kolla,mrangana/kolla,toby82/kolla,rajalokan/kolla,LoHChina/kolla,meticulo3366/kolla,toby82/kolla,coolsvap/kolla,rajalokan/kolla,dardelean/kolla-ansible,tonyli71/kolla,jakedahn/kolla,nihilifer/kolla