COMPMID-1097: Port mobilenet to NHWC

Change-Id: I789065bfa0d4ef133388e1904c5caf31e450f80f
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/129495
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/graph/detail/ExecutionHelpers.h b/arm_compute/graph/detail/ExecutionHelpers.h
index a868df8..27cae4b 100644
--- a/arm_compute/graph/detail/ExecutionHelpers.h
+++ b/arm_compute/graph/detail/ExecutionHelpers.h
@@ -41,6 +41,11 @@
 {
 /** Initializes the available backends **/
 void default_initialize_backends();
+/** Validates all nodes
+ *
+ * @param[in] g Graph to validate
+ */
+void validate_all_nodes(Graph &g);
 /** Configures all nodes of a graph
  *
  * @param[in] g Graph to configure
@@ -66,11 +71,6 @@
  * @param[in] g Graph to allocate the tensors
  */
 void allocate_all_tensors(Graph &g);
-/** Validates all nodes
- *
- * @param[in] g Graph to validate
- */
-void validate_all_nodes(Graph &g);
 /** Configures all nodes of graph
  *
  * @param[in] g   Graph to configure the nodes