Add separate NICs to access OpenStack virtual machines
Dedicated network interface is recommended for accessing OpenStack guest
instances [1]. With current Vagrant-based environment "eth2" interface
is expected to be assigned as additional NIC (with "eth0" for Vagrant
host network and "eth1" for Ansible management network).
[1] https://docs.openstack.org/devstack/latest/networking.html
Issue-ID: INT-1601
Change-Id: I3798f94db476eef77d02e6f8f7e078fc4b4e7622
Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>