mlxsw: spectrum_switchdev: Simplify mlxsw_sp_port_mc_disabled_set()

mlxsw: spectrum_switchdev: Simplify mlxsw_sp_port_mc_disabled_set()

The above mentioned function is called for each port in bridge when the
multicast behavior is changed. Currently, it updates all the relevant
MID entries only for the first call, but the update of flooding per port
is done only for the port that it was called for it.

To simplify this behavior, it is possible to handle flooding for all the
ports in the first call, then, the other calls will do nothing. For
that, new functions are required to set flooding for all ports, no
'struct mlxsw_sp_port' is required.

This issue was found while extending this function for unified bridge
model, the above mentioned change will ease the extending later.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>