COMPMID-2600: Implement a new and generic depthwise convolution for CL QASYMM8 NHWC

The NCHW case is supported at function level by permuting the
inputs/outputs to NHWC.

This patch also removes CLDirectConvolutionLayerOutputStageKernel which
is deprecated and some kernels which were only used in the generic case
of depthwise convolution.

Change-Id: I91e0f02d0a2f4a4a352e08c248e648944137fe68
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2056
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
diff --git a/docs/00_introduction.dox b/docs/00_introduction.dox
index 6e014e3..1210b2b 100644
--- a/docs/00_introduction.dox
+++ b/docs/00_introduction.dox
@@ -236,6 +236,13 @@
 
 @subsection S2_2_changelog Changelog
 
+v19.11 Public major release
+ - Deprecated OpenCL kernels / functions
+    - CLDepthwiseConvolutionLayerReshapeWeightsGenericKernel
+    - CLDepthwiseIm2ColKernel
+    - CLDepthwiseVectorToTensorKernel
+    - CLDirectConvolutionLayerOutputStageKernel
+
 v19.08 Public major release
  - Various bug fixes.
  - Various optimisations.
@@ -624,7 +631,7 @@
  - Added fused batched normalization and activation to @ref CLBatchNormalizationLayer and @ref NEBatchNormalizationLayer
  - Added support for non-square pooling to @ref NEPoolingLayer and @ref CLPoolingLayer
  - New OpenCL kernels / functions:
-    - @ref CLDirectConvolutionLayerOutputStageKernel
+    - CLDirectConvolutionLayerOutputStageKernel
  - New NEON kernels / functions
     - Added name() method to all kernels.
     - Added support for Winograd 5x5.
@@ -746,7 +753,7 @@
     - @ref NEReshapeLayerKernel / @ref NEReshapeLayer
 
  - New OpenCL kernels / functions:
-    - @ref CLDepthwiseConvolutionLayer3x3NCHWKernel @ref CLDepthwiseConvolutionLayer3x3NHWCKernel @ref CLDepthwiseIm2ColKernel @ref CLDepthwiseVectorToTensorKernel CLDepthwiseWeightsReshapeKernel / @ref CLDepthwiseConvolutionLayer3x3 @ref CLDepthwiseConvolutionLayer CLDepthwiseSeparableConvolutionLayer
+    - @ref CLDepthwiseConvolutionLayer3x3NCHWKernel @ref CLDepthwiseConvolutionLayer3x3NHWCKernel CLDepthwiseIm2ColKernel CLDepthwiseVectorToTensorKernel CLDepthwiseWeightsReshapeKernel / @ref CLDepthwiseConvolutionLayer3x3 @ref CLDepthwiseConvolutionLayer CLDepthwiseSeparableConvolutionLayer
     - @ref CLDequantizationLayerKernel / @ref CLDequantizationLayer
     - @ref CLDirectConvolutionLayerKernel / @ref CLDirectConvolutionLayer
     - @ref CLFlattenLayer