Use UefiMultiPhase.h in Vfr.vfr instead of duplicating EFI_VARIABLE_* definitions. Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Reviewed-by: Star Zeng <star.zeng@intel.com>