Adding GPU index as a parameter for ATT (#547)

* Adding GPU index as a parameter for ATT

* Tidy fix

* Using tokenize

* Update tests/rocprofv3/advanced-thread-trace/CMakeLists.txt

Co-authored-by: Indic, Vladimir <Vladimir.Indic@amd.com>

* Update tests/rocprofv3/advanced-thread-trace/CMakeLists.txt

* Adding error logging. Using idx instead of id.

---------

Co-authored-by: Giovanni <gbaraldi@amd.com>
Co-authored-by: Indic, Vladimir <Vladimir.Indic@amd.com>

source/docs/how-to/using-thread-trace.rst

@@ -102,6 +102,9 @@ The following table lists the parameters relevant to thread tracing:
 |                          |         |         |           | Shorthand for att-perfcounter-ctrl and the att-perfcounters  |
 |                          |         |         |           | related to compute unit activity such as VALU, SALU, etc.    |
 +--------------------------+---------+---------+-----------+--------------------------------------------------------------+
+| att-gpu-index            | Integer |         |           | Comma-separated list of integers. If enabled, only the GPU   |
+|                          | (List)  |         |           | indexes in the list will be profiled by thread trace.        |
++--------------------------+---------+---------+-----------+--------------------------------------------------------------+
 
 For AMD Instinct accelerators, enable perfmon streaming using: