netlink: fix bridge port handling
netlink: fix bridge port handling

Even so we get a bridge slave the bridge related changes are shown only
when the family is AF_BRIDGE. In this case we want to have the actual
interface type/kind.

fixes: b31c17c

bisdn/basebox,toanju/basebox,bisdn/basebox,bisdn/basebox,bisdn/basebox,toanju/basebox