[ASan][Compiler-rt] Support Gracefull hsa-runtime shutdown. #559
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Summary:
- Track runtime shutdown via AmdgpuMemFuncs::GetAmdgpuRuntimeShutdown() and gate further pointer_info calls.
- Add interception of 'hsa_init' api call.
- Add registration of hsa-runtime associated system events via 'hsa_amd_register_system_event_handler'.
- HSA event registered is 'HSA_AMD_SYSTEM_SHUTDOWN_EVENT'
Summary: - Added wrapper IsAmdgpuRuntimeShutdown for checking state. - Added wrapper NotifyAmdgpuRuntimeShutdown for updating state.
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Summary: