“90648f336d0a73630d0a862259a4f73ab3c9fe8c”上不存在“paddle/fluid/operators/controlflow/get_places_op.cc”
* enable ngraph throught build_strategy test=develop * add unittest test=develop * put use_ngraph unconditional test=develop * remove paddle_enforce test=develop * remove paddle_enforce test=develop * fix copyright test=develop * limit for ngraph only test=develop