mlxsw: spectrum_fid: Pass FID structure to __mlxsw_sp_fid_port_vid_map()

The function configures {Port, VID}->FID classification entries using
the SVFA register. In the unified bridge model such entries will need to
be programmed with an ingress RIF parameter, which is a FID attribute.

As a preparation for this change, pass the FID structure itself to the
function.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>