IVGCVSW-2875 Reference implementation and unit tests for Dequantize

Change-Id: Ie4ade0519cb0bbe35dc36be6c9cd749b9171c74b
Signed-off-by: Nattapat Chaimanowong <nattapat.chaimanowong@arm.com>
diff --git a/src/backends/reference/RefLayerSupport.cpp b/src/backends/reference/RefLayerSupport.cpp
index 820f36b..532c8ea 100644
--- a/src/backends/reference/RefLayerSupport.cpp
+++ b/src/backends/reference/RefLayerSupport.cpp
@@ -380,6 +380,16 @@
                                      &TrueFunc<>);
 }
 
+bool RefLayerSupport::IsDequantizeSupported(const TensorInfo& input,
+                                            const TensorInfo& output,
+                                            Optional<std::string&> reasonIfUnsupported) const
+{
+    return IsSupportedForDataTypeRef(reasonIfUnsupported,
+                                     input.GetDataType(),
+                                     &FalseFunc<>,
+                                     &TrueFunc<>);
+}
+
 bool RefLayerSupport::IsDetectionPostProcessSupported(const armnn::TensorInfo& input0,
                                                       const armnn::TensorInfo& input1,
                                                       const armnn::DetectionPostProcessDescriptor& descriptor,