The current implementation in ROCclr for callback is
based on OCL specification. If in HIP the same command
could get multiple callbacks, then ROCclr will process them in
a reverse order. Unique Markers for each callback will make
sure it won't happen.
Add a dependency wait for callbacks, since HSA signal callback
doesn't guarantee the order.
Change-Id: I9d514734e258312fe9a74d48132361eb17c52d67
[ROCm/hip commit: 84f8785288]
German Andryeyev
b3f3af2b1b