Populate services in GetLocalAddress

Previously if we didn't have any local addresses, GetLocalAddress would return
0.0.0.0 and then we'd swap in a peer's notion of our address in AdvertiseLocal,
but then nServices would never get set.

src/net.cpp

@@ -148,7 +148,7 @@ static std::vector<CAddress> convertSeed6(const std::vector<SeedSpec6> &vSeedsIn
 // one by discovery.
 CAddress GetLocalAddress(const CNetAddr *paddrPeer, ServiceFlags nLocalServices)
 {
-    CAddress ret(CService(CNetAddr(),GetListenPort()), NODE_NONE);
+    CAddress ret(CService(CNetAddr(),GetListenPort()), nLocalServices);
     CService addr;
     if (GetLocal(addr, paddrPeer))
     {