[Ascend] use aclnnUnique2 impl unique #7043

Job	Run time
Rsync code	1m 2s
Build-Nvidia-A100	2m 26s
Build-Ascend-910b	14m 20s
Build-Supa	0s
Build-Camb	0s
Build-Topsrider	0s
runs on nv / Build-Nvidia	3m 53s
runs on nv / Build-torch-dynamic	0s
Op-Test-Topsrider	0s
Gen-Data-Op-Test-A100	0s
runs on nv / Gen-Data	7s
Op-Test-Supa	0s
Op-Test-Nvidia	0s
Op-Test-Camb	0s
Op-Test-Ascend-910b	10m 38s
	32m 26s

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