IVGCVSW-6127 ConstTensorsAsInput: DepthwiseConvolution2d

!armnn:7417

Signed-off-by: Cathal Corbett <cathal.corbett@arm.com>
Change-Id: Ic37d6b8677e040c60a90358dd0a4a8eb33fb6ea0
diff --git a/test/Dilation.hpp b/test/Dilation.hpp
index 86c1336..dbd2493 100644
--- a/test/Dilation.hpp
+++ b/test/Dilation.hpp
@@ -51,6 +51,8 @@
         armnn::IgnoreUnused(layer, constants, id, name);
         switch (layer->GetType())
         {
+            case armnn::LayerType::Constant:
+                break;
             case armnn::LayerType::Convolution2d:
             {
                 CheckDilationParams(static_cast<const armnn::Convolution2dDescriptor&>(descriptor));