net/mlx5: ifc: Reorganize mlx5_ifc_flow_table_context_bits

The nested union at the end is not in the same style as the rest of the
code, so un-nest it to make the style uniformly applied again.

Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241204220931.254964-2-tariqt@nvidia.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>