Increase gather_facts timeout
Increase gather_facts timeout

Bifrost containers are failing to build occassionally due to udevadm
timeouts. This is likely related to an ansible issue,
https://github.com/ansible/ansible/issues/43884, which can be worked
around by increasing the gather facts timeout value. This change updates
it to 30 seconds from the default 10.

Change-Id: If252e41a012a24f31cf2f1414657ac18c819228f
Closes-Bug: #1812259
Depends-On: https://review.openstack.org/632078

stackforge/kolla,stackforge/kolla,rahulunair/kolla,openstack/kolla,openstack/kolla,stackforge/kolla,rahulunair/kolla