[dnssd] fix minimal mDNS resolver issues (#11963)

* Fix initialization with advertiser
* Fix wrong IP number in resolution result

src/lib/dnssd/Resolver_ImplMinimalMdns.cpp

@@ -176,9 +176,9 @@ void PacketDataReporter::OnOperationalIPAddress(const chip::Inet::IPAddress & ad
  // This code assumes that all entries in the mDNS packet relate to the
  // same entity. This may not be correct if multiple servers are reported
  // (if multi-admin decides to use unique ports for every ecosystem).
- mNodeData.mAddress[mDiscoveredNodeData.numIPs++] = addr;
- mNodeData.mInterfaceId  = mInterfaceId;
- mHasIP  = true;
+ mNodeData.mAddress[mNodeData.mNumIPs++] = addr;
+ mNodeData.mInterfaceId = mInterfaceId;
+ mHasIP = true;
 }
 
 void PacketDataReporter::OnDiscoveredNodeIPAddress(const chip::Inet::IPAddress & addr)
@@ -402,13 +402,13 @@ CHIP_ERROR MinMdnsResolver::Init(chip::Inet::InetLayer * inetLayer)
 {
  /// Note: we do not double-check the port as we assume the APP will always use
  /// the same inetLayer and port for mDNS.
+ mSystemLayer = inetLayer->SystemLayer();
+
  if (GlobalMinimalMdnsServer::Server().IsListening())
  {
  return CHIP_NO_ERROR;
  }
 
- mSystemLayer = inetLayer->SystemLayer();
-
  return GlobalMinimalMdnsServer::Instance().StartServer(inetLayer, kMdnsPort);
 }