IVGCVSW-3025: Refactor reference Convolution2d workload

 * Refactored RefConvolution2dWorkload to support all DataTypes through Encoders and Decoders.
 * Added Convolute function to ConvImpl that uses Encoders and Decoders to support all DataTypes.
 * Deleted RefConvolution2dFloat32Workload and RefConvolution2dUint8Workload.

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ic5ef0f499d08b948fa65fdee54b5f681fd0b1c05
diff --git a/src/backends/backendsCommon/test/Conv2dTestImpl.hpp b/src/backends/backendsCommon/test/Conv2dTestImpl.hpp
index bb5656b..0533c77 100644
--- a/src/backends/backendsCommon/test/Conv2dTestImpl.hpp
+++ b/src/backends/backendsCommon/test/Conv2dTestImpl.hpp
@@ -1125,6 +1125,7 @@
 
     ExecuteWorkload(*workload, memoryManager);
 
+    workloadRef->PostAllocationConfigure();
     workloadRef->Execute();
 
     CopyDataFromITensorHandle(&ret.output[0][0][0][0], outputHandle.get());