Allow the Mistral tunnel timeout to be configurable.
Allow the Mistral tunnel timeout to be configurable.

Change-Id: Ibfd5587476d5a411206f62e8b4b886db662bf7d1
Related-Bug:  #1872823
Signed-off-by: Luke Short <75ade22b5a2100772de069dd66aee23213a7adc0@gmail.com>

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo