[Feature]: Add Roctracer Timestamp Callback Call

[sraikund16]

Suggestion Description

When looking at the Timestamp Operations in roctracer.h, I noticed there is no way to change the clock that roctracer uses to set timestamps. This forces the user to use a system clock, which is not guaranteed to be monotonic. It would be useful to have a rocm version of cuptiActivityRegisterTimestampCallback so that we can set the timestamps to be monotonic.

Thank you.

Operating System

CentOS Stream 9

GPU

N/A

ROCm Component

roctracer