IVGCVSW-4306 Verify the tflite Yolo v3

 * Added debug layer support for QSymmS8
 * QSymmS8 support for workloads

Signed-off-by: Keith Davis <keith.davis@arm.com>
Change-Id: I51af92fadc0be290629dd9198beab5abef9e351f
diff --git a/src/backends/reference/RefWorkloadFactory.cpp b/src/backends/reference/RefWorkloadFactory.cpp
index e7a9c19..792bd7d 100644
--- a/src/backends/reference/RefWorkloadFactory.cpp
+++ b/src/backends/reference/RefWorkloadFactory.cpp
@@ -24,7 +24,8 @@
 std::unique_ptr<IWorkload> RefWorkloadFactory::MakeWorkload(const QueueDescriptorType& descriptor,
                                                             const WorkloadInfo& info) const
 {
-    return MakeWorkloadHelper<NullWorkload, F32Workload, U8Workload, NullWorkload, NullWorkload>(descriptor, info);
+    return MakeWorkloadHelper<NullWorkload, F32Workload, U8Workload, NullWorkload, NullWorkload, NullWorkload>
+           (descriptor, info);
 }
 
 template <DataType ArmnnType>
@@ -54,6 +55,11 @@
     return IsDataType<DataType::QSymmS16>(info);
 }
 
+bool IsQSymm8(const WorkloadInfo& info)
+{
+    return IsDataType<DataType::QSymmS8>(info);
+}
+
 RefWorkloadFactory::RefWorkloadFactory(const std::shared_ptr<RefMemoryManager>& memoryManager)
     : m_MemoryManager(memoryManager)
 {
@@ -185,6 +191,10 @@
     {
         return std::make_unique<RefDebugQSymm16Workload>(descriptor, info);
     }
+    if (IsQSymm8(info))
+    {
+        return std::make_unique<RefDebugQSymm8Workload>(descriptor, info);
+    }
     if (IsDataType<DataType::Signed32>(info))
     {
         return std::make_unique<RefDebugSigned32Workload>(descriptor, info);
@@ -419,7 +429,7 @@
         return std::make_unique<RefPermuteQSymm16Workload>(descriptor, info);
     }
     return MakeWorkloadHelper<RefPermuteFloat16Workload, RefPermuteFloat32Workload, RefPermuteQAsymm8Workload,
-        NullWorkload, NullWorkload>(descriptor, info);
+        NullWorkload, NullWorkload, NullWorkload>(descriptor, info);
 }
 
 std::unique_ptr<IWorkload> RefWorkloadFactory::CreatePooling2d(const Pooling2dQueueDescriptor& descriptor,