Port OpenCL Dequantization to new API

Partially resolves: COMPMID-4193

Change-Id: I4e14149d5b0a7f9c0dd3bfce800eaddca1e4d885
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5238
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/docs/00_introduction.dox b/docs/00_introduction.dox
index 5912383..7fd3af7 100644
--- a/docs/00_introduction.dox
+++ b/docs/00_introduction.dox
@@ -760,7 +760,7 @@
  - Added FP16 support for:
     - @ref CLGEMMMatrixMultiplyReshapedKernel
  - Added new data type QASYMM8_PER_CHANNEL support for:
-    - @ref CLDequantizationLayer
+    - CLDequantizationLayer
     - @ref NEDequantizationLayer
  - Added new data type QSYMM8_PER_CHANNEL support for:
     - @ref CLConvolutionLayer
@@ -1306,7 +1306,7 @@
 
  - New OpenCL kernels / functions:
     - @ref CLDepthwiseConvolutionLayer3x3NCHWKernel @ref CLDepthwiseConvolutionLayer3x3NHWCKernel CLDepthwiseIm2ColKernel CLDepthwiseVectorToTensorKernel CLDepthwiseWeightsReshapeKernel / CLDepthwiseConvolutionLayer3x3 @ref CLDepthwiseConvolutionLayer CLDepthwiseSeparableConvolutionLayer
-    - @ref CLDequantizationLayerKernel / @ref CLDequantizationLayer
+    - CLDequantizationLayerKernel / CLDequantizationLayer
     - @ref CLDirectConvolutionLayerKernel / @ref CLDirectConvolutionLayer
     - CLFlattenLayer
     - CLFloorKernel / @ref CLFloor