Customize "supported_pci_vendor_devs" for SR-IOV
Customize "supported_pci_vendor_devs" for SR-IOV

Allows the operator to configure the NIC vendor’s product ID, if
it differs from the default supported NICs.

By default Intel & Mellanox SR-IOV capable NICs are supported

Change-Id: I9b49ae04cc292ed125eeef30033e566e8f849626
Implements: blueprint tripleo-sriov
Signed-off-by: karthik s <8ffa32a20b3c85702354cad4e4250d070d3be421@redhat.com>

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,dprince/tripleo-heat-templates,trozet/opnfv-tht