1. Add EFI_COMPONENT_NAME2_PROTOCOL.GetControllerName() support.

2. Fix the driver binding Stop() hang issue in the network stack.
3. Add Ip4 raw data support.
4. Add iSCSI Dhcp option 60 support.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang Qian <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13995 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c

@@ -58,6 +58,12 @@ Mtftp4CleanOperation (
   }
 
   if (Instance->McastUdpPort != NULL) {
+    gBS->CloseProtocol (
+           Instance->McastUdpPort->UdpHandle,
+           &gEfiUdp4ProtocolGuid,
+           gMtftp4DriverBinding.DriverBindingHandle,
+           Instance->Handle
+           );
     UdpIoFreeIo (Instance->McastUdpPort);
     Instance->McastUdpPort = NULL;
   }