mlxsw: spectrum_matchall: Move ingress indication into mall_entry

Instead of having it in mirror_entry structure, move it to mall_entry
and set it during rule insertion.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>