Use `torch` in `get_2d_sincos_pos_embed` and `get_3d_sincos_pos_embed` (#10156)
* Use torch in get_2d_sincos_pos_embed
* Use torch in get_3d_sincos_pos_embed
* get_1d_sincos_pos_embed_from_grid in LatteTransformer3DModel
* deprecate
* move deprecate, make private