REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2787 When output string data through serial port, will not ouput \n\r now. Caller can output several data in one line, and output \n\r when needed. Signed-off-by: Ming Tan <ming.tan@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com>