When build with WinSDK <= Win10 TH2, the terminal over CMD.exe doesn't work. Because Win10 later than TH2 starts to support VT terminal. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>