mlxsw: Support FLOW_ACTION_MANGLE for SIP and DIP IPv4 addresses

Spectrum-2 supports an ACL action SIP_DIP, which allows IPv4 and IPv6
source and destination addresses change. Offload suitable mangles to
the IPv4 address change action.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>