3a4d69def2
HIP tests require HIP callbacks to be processed in another thread.
This change will use a thread from HSA signal callbacks to make
sure a HIP callback was done asynchronously.
Also process the callback before changing the status of command
Change-Id: Icef85d0e0f808663882cf6881ff1be3e5eca29ac
[ROCm/clr commit: 7f32d0b425]