Fix a bug GenFds tool not have MACRO information from build command line. 
Fix a bug GenFds tool not have MACRO information from build command line. 

Signed-off-by: gikidy
Reviewed-by: jsu1
Reviewed-by: yingke



git-svn-id: f3880c1fc5096ce2109c8aec392d8e07f619f417@2248 c2973edb-eda0-4c78-bc6a-9341b269661f

tianocore/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,tianocore/buildtools-BaseTools,tianocore/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,tianocore/buildtools-BaseTools,tianocore/buildtools-BaseTools,bitcrystal/buildtools-BaseTools