net/mlx5: mlx5_ifc update for multi-plane support

Add new fields to support mlx5 multi-plane feature. Actual support will
be added in following patches.

Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/36a74a1b1d2b7b59c99cda4abad1794ddde30230.1718553901.git.leon@kernel.org


Signed-off-by: Leon Romanovsky <leonro@nvidia.com>