Sync from upstream TF. (#3461)

Author: TFLM-bot

tensorflow/lite/python/schema_py_generated.py

@@ -1,9 +1,8 @@
-import flatbuffers
-
 # automatically generated by the FlatBuffers compiler, do not modify
 
 # namespace: tflite
 
+import flatbuffers
 from flatbuffers.compat import import_numpy
 np = import_numpy()