Description of configuration options for ml2_sriov

Configuration option = Default value	Description
[ml2_sriov]
agent_required = False	(BoolOpt) SRIOV neutron agent is required for port binding
supported_pci_vendor_devs = 15b3:1004, 8086:10c9	(ListOpt) Supported PCI vendor devices, defined by vendor_id:product_id according to the PCI ID Repository. Default enables support for Intel and Mellanox SR-IOV capable NICs