[D3D12] Trace guest memory operations

src/xenia/gpu/vulkan/vulkan_command_processor.cc

@@ -1322,6 +1322,10 @@ bool VulkanCommandProcessor::IssueCopy() {
   return true;
 }
 
+void VulkanCommandProcessor::InitializeTrace() {}
+
+void VulkanCommandProcessor::FinalizeTrace() {}
+
 }  // namespace vulkan
 }  // namespace gpu
 }  // namespace xe