[fix assign op] using assign op instead of scale1.0
[fix assign op] using assign op instead of scale1.0

PaddlePaddle/Paddle,baidu/Paddle,baidu/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,putcn/Paddle,reyoung/Paddle,jacquesqiao/Paddle,luotao1/Paddle,luotao1/Paddle,luotao1/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,putcn/Paddle,chengduoZH/Paddle,QiJune/Paddle,putcn/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,pkuyym/Paddle,pkuyym/Paddle,tensor-tang/Paddle,luotao1/Paddle,Canpio/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,Canpio/Paddle,Canpio/Paddle,pkuyym/Paddle,chengduoZH/Paddle,reyoung/Paddle,PaddlePaddle/Paddle,putcn/Paddle,QiJune/Paddle,reyoung/Paddle,jacquesqiao/Paddle,QiJune/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,baidu/Paddle,putcn/Paddle,QiJune/Paddle,luotao1/Paddle,baidu/Paddle,chengduoZH/Paddle,jacquesqiao/Paddle,putcn/Paddle,baidu/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,pkuyym/Paddle,pkuyym/Paddle,reyoung/Paddle,reyoung/Paddle,Canpio/Paddle,Canpio/Paddle,luotao1/Paddle,reyoung/Paddle,pkuyym/Paddle,Canpio/Paddle