net/mlx5: fs, Add other_eswitch support for steering tables

net/mlx5: fs, Add other_eswitch support for steering tables

Add other_eswitch support which allows flow tables creation above vports
that reside on different esw managers.

The new flag MLX5_FLOW_TABLE_OTHER_ESWITCH indicates if the
esw_owner_vhca_id attribute is supported.

Note that this is only supported if the Advanced-RDMA cap-
rdma_transport_manager_other_eswitch is set.
And it is the caller responsibility to check that.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20251029-support-other-eswitch-v1-2-98bb707b5d57@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>