This patch add new option --dummy file, and we compare the dummpy file
with input file to decide whether we need to set PROCESSING_REQUIRED
value.
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yunhua Feng <yunhuax.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>