PC Sampling - blit kernels handling (#878)

* correlation id 0 for blit kernels' samples

* rocprofiler_pc_sampling_snapshot_v1_t docs update (for future use)

* ROCPROFILER_CORRELATION_ID_VALUE_NONE introduced

* Simplifying ROCPROFILER_CORRELATION_ID_VALUE_NONE

* Apply suggestions from code review

Co-authored-by: Vladimir Indic <139573562+vlaindic@users.noreply.github.com>

---------

Co-authored-by: Jonathan R. Madsen <jrmadsen@users.noreply.github.com>

source/lib/rocprofiler-sdk/pc_sampling/hsa_adapter.cpp

@@ -176,8 +176,7 @@ data_ready_callback(void*                                client_callback_data,
 
         if(pcs_parser_status != PCSAMPLE_STATUS_SUCCESS)
         {
-            // TODO: should we end program here or somehow report an error to the user and continue?
-            throw std::runtime_error("Error while parsing PC samples");
+            ROCP_INFO << "PCS Parser encountered samples from a blit kernel.\n";
         }
     });
 }