The Eot will report error when python3 enabled.
We replaced sdict with collections.OrderedDict in python3
patch set, but the sdict implement "append" method which is not
implemented in collections.OrderedDict.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>