Fixed DirectConvolutionLayer validation tests

* Only two out of the nine tests executed due to the missing ActivationLayerInfo

* Tests improvements, work related to COMPMID-4322

Change-Id: I4b87d33604351d5e143865c111eda19d1f5e2680
Signed-off-by: Pablo Marquez Tello <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5810
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validation/NEON/DirectConvolutionLayer.cpp b/tests/validation/NEON/DirectConvolutionLayer.cpp
index c3d6e94..368aef2 100644
--- a/tests/validation/NEON/DirectConvolutionLayer.cpp
+++ b/tests/validation/NEON/DirectConvolutionLayer.cpp
@@ -228,7 +228,14 @@
                                                        framework::dataset::make("ActivationInfo",
 {
     ActivationLayerInfo(),
-    ActivationLayerInfo(ActivationLayerInfo::ActivationFunction::RELU)
+    ActivationLayerInfo(ActivationLayerInfo::ActivationFunction::RELU),
+    ActivationLayerInfo(),
+    ActivationLayerInfo(),
+    ActivationLayerInfo(),
+    ActivationLayerInfo(),
+    ActivationLayerInfo(ActivationLayerInfo::ActivationFunction::RELU),
+    ActivationLayerInfo(ActivationLayerInfo::ActivationFunction::RELU),
+    ActivationLayerInfo(ActivationLayerInfo::ActivationFunction::RELU),
 })),
         framework::dataset::make("Expected", { false, false, false, false, false, false, false, false, false })),
         input_info, weights_info, biases_info, output_info, conv_info, act_info, expected)