Fix bootstrap-ansible.sh invocation directory
Fix bootstrap-ansible.sh invocation directory

Add steps to prevent bootstrap-ansible.sh from failing due to
invocation directory

Closes-Bug: 1544165
Change-Id: I5952ecf246326fe9053586d5065f50f6498e4586

os-cloud/os-ansible-deployment,Logan2211/openstack-ansible,yanyao/openstack-ansible,yanyao/openstack-ansible,mrda/openstack-ansible,stackforge/os-ansible-deployment,major/openstack-ansible,BjoernT/os-ansible-deployment,cloudnull/os-ansible-deployment,cfarquhar/openstack-ansible,BjoernT/os-ansible-deployment,BjoernT/openstack-ansible,robb-romans/openstack-ansible,mrda/openstack-ansible,os-cloud/os-ansible-deployment,bunchc/openstack-ansible,cfarquhar/openstack-ansible,weezer/openstack-ansible,BjoernT/openstack-ansible,stackforge/os-ansible-deployment,BjoernT/os-ansible-deployment,bunchc/openstack-ansible,openstack/openstack-ansible,yanyao/newton,major/os-ansible-deployment,yanyao/newton,cloudnull/os-ansible-deployment,robb-romans/openstack-ansible,major/os-ansible-deployment,mancdaz/openstack-ansible,mrda/openstack-ansible,weezer/openstack-ansible,openstack/openstack-ansible,mancdaz/openstack-ansible,major/openstack-ansible,Logan2211/openstack-ansible