Add ec_vf_vport_base to HCA Capabilities 2. This indicates the base vport
of embedded CPU virtual functions that are connected to the eswitch.
Add ec_vf_function to query/set_hca_caps. If set this indicates
accessing a virtual function on the embedded CPU by function ID. This
should only be used with other_function set to 1.
Signed-off-by: Daniel Jurgens <danielj@nvidia.com> Reviewed-by: Bodong Wang <bodong@nvidia.com> Reviewed-by: William Tu <witu@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>