COMPMID-1011: Create struct for the graph config parameters

Change-Id: I9c164a817c0cc5f264a5c71a59256dacc6314cb0
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/125456
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/examples/graph_vgg16.cpp b/examples/graph_vgg16.cpp
index 516b7b1..23742ed 100644
--- a/examples/graph_vgg16.cpp
+++ b/examples/graph_vgg16.cpp
@@ -65,10 +65,8 @@
         std::unique_ptr<IPreprocessor> preprocessor = arm_compute::support::cpp14::make_unique<CaffePreproccessor>(mean_rgb);
 
         // Set target. 0 (NEON), 1 (OpenCL), 2 (OpenCL with Tuner). By default it is NEON
-        const int target                   = argc > 1 ? std::strtol(argv[1], nullptr, 10) : 0;
-        Target    target_hint              = set_target_hint2(target);
-        bool      enable_tuning            = (target == 2);
-        bool      enable_memory_management = true;
+        const int target      = argc > 1 ? std::strtol(argv[1], nullptr, 10) : 0;
+        Target    target_hint = set_target_hint2(target);
 
         // Check if we can use GEMM-based convolutions evaluating if the platform has at least 1.8 GB of available memory
         const size_t      memory_required           = 1932735283L;
@@ -231,7 +229,10 @@
               << OutputLayer(get_output_accessor(label, 5));
 
         // Finalize graph
-        graph.finalize(target_hint, enable_tuning, enable_memory_management);
+        GraphConfig config;
+        config.use_function_memory_manager = true;
+        config.use_tuner                   = (target == 2);
+        graph.finalize(target_hint, config);
     }
     void do_run() override
     {