[SYCL][PI][L0] Enables command batching in enqueueMemCopyHelper (#3232)

This change enables command batching for all commands that are
enqueued using enqueueMemCopyHelper.

Author: kbsmith-intel

sycl/plugins/level_zero/pi_level_zero.cpp

@@ -4209,7 +4209,7 @@ enqueueMemCopyHelper(pi_command_type CommandType, pi_queue Queue, void *Dst,
   ze_command_list_handle_t ZeCommandList = nullptr;
   ze_fence_handle_t ZeFence = nullptr;
   if (auto Res = Queue->Context->getAvailableCommandList(Queue, &ZeCommandList,
-                                                         &ZeFence))
+                                                         &ZeFence, true))
     return Res;
 
   ze_event_handle_t ZeEvent = nullptr;
@@ -4229,15 +4229,15 @@ enqueueMemCopyHelper(pi_command_type CommandType, pi_queue Queue, void *Dst,
   ZE_CALL(zeCommandListAppendMemoryCopy(ZeCommandList, Dst, Src, Size, ZeEvent,
                                         0, nullptr));
 
-  if (auto Res =
-          Queue->executeCommandList(ZeCommandList, ZeFence, BlockingWrite))
-    return Res;
-
   zePrint("calling zeCommandListAppendMemoryCopy() with\n"
           "  ZeEvent %#lx\n",
           pi_cast<std::uintptr_t>(ZeEvent));
   printZeEventList(WaitList);
 
+  if (auto Res = Queue->executeCommandList(ZeCommandList, ZeFence,
+                                           BlockingWrite, true))
+    return Res;
+
   return PI_SUCCESS;
 }