FDF spec support to use 'Auto' as <FfsAlignmentValues>, but current Tool report error about -a=Auto is invalid option when we set Align=Auto for RAW File. Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>