In the unified bridge model, the bridge type FID attribute is no longer
configured by the firmware, but instead by software when creating and
editing a FID via SFMR register.

Set this field as part of FID creation and edition flow. Default to 0
(reserved) as long as the driver operates in the legacy bridge model.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>