Add a new per-vlan option set command. It allows to manipulate vlan
options, those can be bridge-wide or per-port depending on what device
is specified. The first option that can be set is the vlan STP state,
it is identical to the bridge port STP state. The man page is also
updated accordingly.
Example:
$ bridge vlan set vid 10 dev br0 state learning
or a range:
$ bridge vlan set vid 10-20 dev swp1 state blocking
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>