INetd.LOCAL_NET_ID cannot be referred to by system SDK. To make the
MdnsSocketProvider built with system SDK, the reference to
INetd.LOCAL_NET_ID must be removed.
This network is created in MdnsSocketProvider.java and propagated
through MdnsSocketProvider.java -> MdnsMultinetworkSocketClient.java ->
MdnsDiscoveryManager.java -> MdnsServiceTypeClient.java ->
NsdService.java. In NsdService.java, it was used in
handleMdnsDiscoveryManagerEvent() -> buildNsdServiceInfoFromMdnsEvent()
-> setServiceNetworkForCallback(). The setServiceNetworkForCallback() is
updated to handle the NETID_UNSET the same as LOCAL_NET_ID.
Test: atest CtsNetTestCases FrameworksNetTests
Bug: 272392042
Change-Id: I07c573948e9dc6249325f0733807bb7a7ffc281c
3bee9d4099