rocprofv3: support specifying HW counters via command line (#1130)

* rocprofv3: support specifying PMC counters via command line

- E.g. `rocprofv3 --pmc SQ_WAVES -- <app>`

* Update CHANGELOG

* updated rocprofv3 help and documentation

---------

Co-authored-by: Gopesh Bhardwaj <gopesh.bhardwaj@amd.com>

source/docs/how-to/using-rocprofv3.rst

@@ -542,6 +542,21 @@ Properties
         - WRITE_SIZE
 
 
+Command-Line
++++++++++++++
+
+Desired counters can now be collected as ``command-line`` option as well.
+
+To supply the counters via ``command-line`` options, use:
+
+.. code-block:: shell
+
+   rocprofv3 --pmc SQ_WAVES GRBM_COUNT GRBM_GUI_ACTIVE -- <app_relative_path>
+
+.. note::
+   1. Please note that more than 1 counters should be separated by a space or a comma.
+   2. Job will fail if entire set of counters cannot be collected in single pass
+
 Kernel profiling output
 +++++++++++++++++++++++++