Enable API services to all hosts

Open the API ports to all hosts.

Change-Id: I3363cf5f683595ce55d3bb2c57968c21b8f29cba
Fixes: rhbz#1099787
Fixes: rhbz#1134433
(cherry picked from commit c656a3d89661083b73be3914c889b1a2c8f58154)
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>