IFLA_INFO_DATA for a vlan link — the per-kind data inside
IFLA_LINKINFO.
A vlan carries an IFLA_VLAN_ID (a u16). Egress/ingress QoS maps and
the protocol selector are not modeled here yet.
Summary
Types
@type t() :: %Linx.Netlink.Rtnl.LinkInfo.Vlan{id: term()}