tkDNN works with trt8!!,need to test int8 and mobilenet,dla_cnet (fps seems to be a bit low 350 on trt8 compared to 396 on trt7)

src/NetworkRT.cpp

@@ -657,8 +657,8 @@ bool NetworkRT::deserialize(const char *filename) {
 
 void NetworkRT::destroy() {
     contextRT->destroy();
-    configRT->destroy();
     engineRT->destroy();
+    configRT->destroy();
     builderRT->destroy();
 }