When the FV size is specify in the FD region, Tool generate the FV file
may not use the correct size.
Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=387
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>