IVGCVSW-4420 Failing Unit Test Cl: Quantize layer

 * Fix bug with missing ValidateInputsOutputs in Cl Workload
 * Renamed data type tests to be more specific
 * Future proofing

Signed-off-by: Keith Davis <keith.davis@arm.com>
Change-Id: I157acc318e40d727fcfb3f36f7f577fc87472f3d
diff --git a/src/backends/cl/ClWorkloadFactory.cpp b/src/backends/cl/ClWorkloadFactory.cpp
index 0440aac..4bb2e2a 100644
--- a/src/backends/cl/ClWorkloadFactory.cpp
+++ b/src/backends/cl/ClWorkloadFactory.cpp
@@ -438,7 +438,7 @@
 std::unique_ptr<IWorkload> ClWorkloadFactory::CreateQuantize(const QuantizeQueueDescriptor& descriptor,
                                                              const WorkloadInfo& info) const
 {
-    return MakeWorkload<ClQuantizeWorkload, NullWorkload>(descriptor, info);
+    return MakeWorkload<ClQuantizeWorkload>(descriptor, info);
 }
 
 std::unique_ptr<IWorkload> ClWorkloadFactory::CreateQuantizedLstm(const QuantizedLstmQueueDescriptor& descriptor,