add `reduce_sum` op into amp black list (#33960)
* reduce sum op default fp32, add into amp black list * reduce_sum default fp32 can avoid return inf when the sum value large than 65504
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Fork自 PaddlePaddle / Paddle
* reduce sum op default fp32, add into amp black list * reduce_sum default fp32 can avoid return inf when the sum value large than 65504