SWDEV-431879 - Introduce IsHandlerPending back.

It seems that due to removal of vdev()->isHandlerPending(),
Marker queued to ensure finish is not enqueued and that cause
hung at waiting event for kernel enqueue command.

Change-Id: I364abb2dcb4897b11a7eb61b5d85013b69292792


[ROCm/clr commit: eecbc2e436]

projects/clr/rocclr/device/rocm/rocvirtual.cpp

@@ -468,10 +468,12 @@ hsa_signal_t VirtualGPU::HwQueueTracker::ActiveSignal(
           ClPrint(amd::LOG_INFO, amd::LOG_SIG, "Set Handler: handle(0x%lx), timestamp(%p)",
             prof_signal->signal_.handle, prof_signal);
         }
+        SetHandlerPending(false);
         // Update the current command/marker with HW event
         prof_signal->retain();
         ts->command().SetHwEvent(prof_signal);
       } else if (ts->command().profilingInfo().marker_ts_) {
+        SetHandlerPending(true);
         // Update the current command/marker with HW event
         prof_signal->retain();
         ts->command().SetHwEvent(prof_signal);