Add back pycuda.autoinit to test_pt_onnx_trt (#51106)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/51105 by adding back the `import pycuda.autoinit`.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/51106
Reviewed By: mingzhe09088
Differential Revision: D26086808
Pulled By: heitorschueroff
fbshipit-source-id: 88d98796c87a44cedaa1f6666e9f71a424293641
