This patch is to fix the invalid setting of MTFTP local port. The issue can be reproduced by tftp shell command by using [-l port] option. Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>