IVGCVSW-2308 Add Conv2d tests where stride > 1

Change-Id: Iae6a3bfad06cb669ef0abea465d03163bb8316f5
diff --git a/src/backends/backendsCommon/test/LayerTests.hpp b/src/backends/backendsCommon/test/LayerTests.hpp
index 146f8c4..a871594 100644
--- a/src/backends/backendsCommon/test/LayerTests.hpp
+++ b/src/backends/backendsCommon/test/LayerTests.hpp
@@ -66,6 +66,12 @@
     bool biasEnabled,
     const armnn::DataLayout layout);
 
+LayerTestResult<float, 4> SimpleConvolution2d3x3Stride2x2Test(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    bool biasEnabled,
+    const armnn::DataLayout layout);
+
 LayerTestResult<float, 4> SimpleConvolution2d3x3NhwcTest(
     armnn::IWorkloadFactory& workloadFactory,
     const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,