rocm_smi.py had an issue where it gets process information
in 2 different places. If the process disappears in between
those 2 places, a crash would occur.
This fix gracefully returns in this scenario.
Reading the file information from /proc instead of using
the python subProcess() call was considered, but it has the
drawback of not being able to read the process names of
processes not owned by the caller.
Change-Id: If812c4641f00da37e99defb0740f670107c8a797
[ROCm/amdsmi commit: db6d8d36ea]
Chris Freehill
24b23e90a8