IVGCVSW-6469 Add MirrorPad FrontEnd and Ref Support

 * Added PaddingMode enum to PaddingDescriptor to enable Symmetric and
   Reflect padding.
 * Added Symmetric and Reflect Ref implementation.
 * Added Serializer & Deserializer support.
 * Added unit tests.

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: I4bed907b31742b32ccefe5e8ca39a6f1e5bd9dee
diff --git a/src/backends/cl/workloads/ClFillWorkload.cpp b/src/backends/cl/workloads/ClFillWorkload.cpp
index 8cb2db4..ea42dcf 100644
--- a/src/backends/cl/workloads/ClFillWorkload.cpp
+++ b/src/backends/cl/workloads/ClFillWorkload.cpp
@@ -29,7 +29,7 @@
     m_Data.ValidateInputsOutputs("ClFillWorkload", 1, 1);
 
     arm_compute::ICLTensor& output = static_cast<IClTensorHandle*>(this->m_Data.m_Outputs[0])->GetTensor();
-    arm_compute::PixelValue pixelValue = GetPixelValue(output, descriptor.m_Parameters.m_Value);
+    arm_compute::PixelValue pixelValue = GetPixelValue(output.info(), descriptor.m_Parameters.m_Value);
 
     m_Layer.configure(clCompileContext, &output, pixelValue);
 }