Merge branch 'lan966x-mcast-snooping'

Horatiu Vultur says:

====================
net: lan966x: add support for mcast snooping

Implement the switchdev callback SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED
to allow to enable/disable multicast snooping.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>