fix cudasynchronize of fft_c2r_compute

[YibinLiu666]

PR Category

Performance Optimization

PR Types

Performance

Description

修复fft_c2r_compute在计算过程中长时间进行cudasynchronize 的问题，使用trust库会导致这个算子在计算时长时间的同步
修复前：

修复后：

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[HydrogenSulfate]

LGTM，可以在描述中加一下nsigh的两个对比图，然后说一下为什么不用thrust库而是手动copy，这样能直观说明问题

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Sorry to inform you that 36d44ea's CIs have passed for more than 7 days. To prevent PR conflicts, you need to re-run all CIs manually.

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