[AIU Profiler] Allow AIU profiling via env vars on newer PyTorch versions #1172
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Fixes a bug where setting the environment variable
ProfilerActivity=PrivateUse1wouldn't enable the PrivateUse1 activities for AIU as intended.This is because
ActivityType::PRIVATEUSE1_RUNTIMEandActivityType::PRIVATEUSE1_DRIVERare enabled by default when passingtorch.profiler.ProfilerActivity.CPUtotorch.profiler.profileon newer versions of PyTorch (see: here).