When the virt dirver is xenapi, we should explicitly specify host
with dom0's hostname for nova-compute. The host field should be same
as neutron-openvswitch-agent-xenapi.
In order to use dom0's hostname, we need pull the bootstrap_xenapi
to before running nova config tasks. The dom0's hostname will be
included in the XenAPI facts.
Change-Id: Ibfc964bbd6c569062ad33c1399f9a4612baf5b92
blueprint: xenserver-support
3b89a7d466