IVGCVSW-5815 Generalise ConstCpuTensorHandle

* Generalises ConstCpuTensorHandle and inherited
  classes by removing 'Cpu' from aliases.
* New renamed classes: ConstTensorHandle, TensorHandle,
  ScopedTensorHandle, PassthroughTensorHandle,
  ConstPassthroughTensorHandle.

Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: I1824e0e134202735fb77051f20a7252f161dfe16
diff --git a/src/backends/reference/workloads/RefFullyConnectedWorkload.cpp b/src/backends/reference/workloads/RefFullyConnectedWorkload.cpp
index deb56d4..3e63afa 100644
--- a/src/backends/reference/workloads/RefFullyConnectedWorkload.cpp
+++ b/src/backends/reference/workloads/RefFullyConnectedWorkload.cpp
@@ -18,14 +18,14 @@
 {
     if (descriptor.m_Parameters.m_ConstantWeights)
     {
-        m_Weight = std::make_unique<ScopedCpuTensorHandle>(*(descriptor.m_Weight));
+        m_Weight = std::make_unique<ScopedTensorHandle>(*(descriptor.m_Weight));
         const TensorInfo& rWeightInfo = m_Weight->GetTensorInfo();
         m_WeightShape = rWeightInfo.GetShape();
         m_WeightDecoder = MakeDecoder<float>(rWeightInfo, m_Weight->Map(true));
 
         if (descriptor.m_Parameters.m_BiasEnabled)
         {
-            m_Bias = std::make_unique<ScopedCpuTensorHandle>(*(descriptor.m_Bias));
+            m_Bias = std::make_unique<ScopedTensorHandle>(*(descriptor.m_Bias));
             const TensorInfo& biasInfo = m_Bias->GetTensorInfo();
             m_BiasDecoder = MakeDecoder<float>(biasInfo, m_Bias->Map(true));
         }