Merge "Migrate legacy dhcp server config to DeviceConfig" am: 63647c2d7a am: 08e7ddcbfb am: 803fd24c79

Change-Id: I43a2a55077bfd1da96c72e76b5289334ab22f2ea
tree: 71a49ee7711ce23d41e5401fe91387b9c8915cd5
  1. Tethering/