COMPMID-1367: Enable NHWC in graph examples

Change-Id: Iabc54a3a1bdcd46a9a921cda39c7c85fef672b72
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/141449
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/graph/frontend/Types.h b/arm_compute/graph/frontend/Types.h
index cd579e2..f9d4952 100644
--- a/arm_compute/graph/frontend/Types.h
+++ b/arm_compute/graph/frontend/Types.h
@@ -64,9 +64,9 @@
 struct StreamHints
 {
     Target                     target_hint                       = { Target::UNSPECIFIED };                 /**< Target execution hint */
-    ConvolutionMethod          convolution_method_hint           = { ConvolutionMethod::DEFAULT };          /**< Convolution method hint */
-    DepthwiseConvolutionMethod depthwise_convolution_method_hint = { DepthwiseConvolutionMethod::DEFAULT }; /**< Depthwise Convolution method hint */
-    FastMathHint               fast_math_hint                    = { FastMathHint::DISABLED };              /**< Fast math hint */
+    ConvolutionMethod          convolution_method_hint           = { ConvolutionMethod::Default };          /**< Convolution method hint */
+    DepthwiseConvolutionMethod depthwise_convolution_method_hint = { DepthwiseConvolutionMethod::Default }; /**< Depthwise Convolution method hint */
+    FastMathHint               fast_math_hint                    = { FastMathHint::Disabled };              /**< Fast math hint */
 };
 } // namespace frontend
 } // namespace graph