net/mlx5: Introduce ifc bits for migration in a chunk mode

Introduce ifc related stuff to enable migration in a chunk mode.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20230911093856.81910-2-yishaih@nvidia.com


Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>