net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring

On TTC table creation, the indirection TIRs should be used instead of
the inner indirection TIRs.

Fixes: 1ae1df3a ("net/mlx5e: Refactor RSS related objects and code")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Shalom Lagziel <shaloml@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>