Workaround ansible bug related to delegate_to
Workaround ansible bug related to delegate_to

Currently the delegate_to doesnt happen and the neutron role creation is
attempted once on the first server and is skipped. The re-ordering of hosts in
site.yml seems to make the first host to be one inside neutron-server group
yielding the expected results. This patch needs to be re-visited as soon as a
version of ansible is chosen that fixes the issues with delegate_to

Co-Authored-By: Steven Dake <2e3c4b622a7fc69aafabc286d8c2bde46ee9920b@cisco.com>
Co-Authored-By: Vikram Hosakote <df90614c185d5783ed1ad7eb3eebba1608fdbb24@cisco.com>
Co-Authored-By: Nate Potter <00ad8c8c669149affbcc64377cefc2128e415e6b@intel.com>
Co-Authored-By: Ganesh Mahalingam <e84b6eb1374b2034268ad16b797fbec9318eafab@intel.com>
Change-Id: Ia712b323aa9d750d470a11ee899ab1b3054a903f
Partial-Bug: #1546789
(cherry picked from commit 0bba5fe0007b281c0a2ee75e4f1c9f3950413e6f)

negronjl/kolla,negronjl/kolla,negronjl/kolla