Fix typo grid_sampler_3d_cuda (#67752)
Summary:
Fixes #{issue number}
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67752
Reviewed By: NivekT, mruberry
Differential Revision: D32256561
Pulled By: H-Huang
fbshipit-source-id: b4d56cadf15bc00181e899ea4be4b1bcfe63f692
