Adds Tilera back-end for baremetal

blueprint add-tilera-to-baremetal.

The baremetal driver is a hypervisor driver for Openstack Nova
Compute. Within the Openstack framework, it has the same role
as the drivers for other hypervisors (libvirt, xen, etc). With
this patch set of tilera-backend, provisioning and management
of non-PXE tilera physical hardware is accomplished using
common cloud APIs and tools.

Change-Id: I356c06a07ace463779e3b84836d5000331e24814
Co-authored-by: Mikyung Kang <mkkang@isi.edu>
Co-authored-by: David Kang <dkang@isi.edu>
Co-authored-by: Ken Igarashi <igarashik@nttdocomo.co.jp>
Co-authored-by: Arata Notsu <notsu@virtualtech.jp>
Co-authored-by: Devananda van der Veen <devananda.vdv@gmail.com>
Merge "Adds Tilera back-end for baremetal"