Make the comments follow Edk2 coding style: 1. Make the comments starts with /** and end with **/. 2. Make the comments descrition end with '.' Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>