Merge pull request #2097 from nrspruit/fix_cb_event_signalling

[L0] Fix Counter Based Event Default signal given placeholder

Author: pbalcer

source/adapters/level_zero/event.cpp

@@ -1546,8 +1546,13 @@ ur_result_t _ur_ze_event_list_t::createAndRetainUrZeEventList(
 
           ZE2UR_CALL(zeCommandListAppendWaitOnEvents,
                      (ZeCommandList, 1u, &EventList[I]->ZeEvent));
-          if (!MultiDeviceEvent->CounterBasedEventsEnabled)
+          if (!MultiDeviceEvent->CounterBasedEventsEnabled) {
             ZE2UR_CALL(zeEventHostSignal, (MultiDeviceZeEvent));
+          } else {
+            ZE2UR_CALL(zeCommandListAppendSignalEvent,
+                       (ZeCommandList, MultiDeviceZeEvent));
+          }
+          MultiDeviceEvent->Completed = true;
 
           UR_CALL(Queue->executeCommandList(CommandList, /* IsBlocking */ false,
                                             /* OkToBatchCommand */ true));