[PHI] Fix `paddle.cumsum` calculation speed #1816

Job	Run time
Clone-windows / Clone Paddle	1m 46s
Windows-OPENBLAS / Check bypass / Check bypass	13s
Windows-GPU / Check bypass / Check bypass	11s
Windows-Inference / Check bypass / Check bypass	12s
Windows-GPU / Build and test	1h 1m 30s
Windows-OPENBLAS / Build and test	54m 24s
Windows-Inference / Build and test	1h 47m 22s
	3h 45m 38s

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