refact dynamic_shape #3644

Job	Run time
Rsync code	3m 5s
Build-dipu-cuda	4m 50s
Build-dipu-camb	6m 24s
Build-dipu-camb-latest-target	5m 6s
Build-dipu-cuda-latest-target	4m 38s
Build-dipu-pytorch-for-ascend	7s
Build-dipu-ascend	2m 35s
Build-dipu-ascend-latest-target	2m 39s
Test-dipu-ascend	7s
Test-one-iter-ascend	1m 53s
Test-dipu-ascend-latest-target	8s
Test-dipu-cuda-latest-target	9m 2s
Test-dipu-cuda	9m 21s
Test-one-iter-cuda	13m 53s
Test-dipu-camb-latest-target	10m 12s
Test-one-iter-camb	13m 45s
Test-dipu-camb	11m 2s
	1h 38m 47s

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