* changes: Temporarily ignore ethernet tests until prebuilts are updated Add CTS tests for EthernetNetworkProvider changes Move EthernetNetworkFactory to using the NetworkProvider API Add NetworkOfferCallback to NetworkInterfaceState Change NetworkInterfaceState to hold NetworkProvider instance Improve waiting for interface added or removed Always wait for interface to be up in EthernetManagerTest Assume all Ethernet interfaces have an MTU of 1500.