Enable unit tests for ROCm 2.3 (#19307)
Summary:
Unit tests that hang on clock64() calls are now fixed.
test_gamma_gpu_sample is now fixed.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19307
Differential Revision: D14953420
Pulled By: bddppq
fbshipit-source-id: efe807b54e047578415eb1b1e03f8ad44ea27c13
