COMPMID-3957: Deprecate neon CV functions.

Change-Id: Idfc215c4f95472e2e61d2972cfd5d33786cc088e
Signed-off-by: morgolock <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4341
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Sheri Zhang <sheri.zhang@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/NEON/functions/NEGaussianPyramid.h b/arm_compute/runtime/NEON/functions/NEGaussianPyramid.h
index c82de0f..f5a1272 100644
--- a/arm_compute/runtime/NEON/functions/NEGaussianPyramid.h
+++ b/arm_compute/runtime/NEON/functions/NEGaussianPyramid.h
@@ -42,7 +42,11 @@
 class NEGaussianPyramidVertKernel;
 class NEFillBorderKernel;
 
-/** Common interface for all Gaussian pyramid functions */
+/** Common interface for all Gaussian pyramid functions
+ *
+ * @deprecated This function is deprecated and is intended to be removed in 21.05 release
+ *
+ */
 class NEGaussianPyramid : public IFunction
 {
 public:
@@ -81,6 +85,9 @@
  * -# @ref NEGaussianPyramidHorKernel
  * -# @ref NEGaussianPyramidVertKernel
  *
+ * @deprecated This function is deprecated and is intended to be removed in 21.05 release
+ *
+ *
  */
 class NEGaussianPyramidHalf : public NEGaussianPyramid
 {
@@ -115,6 +122,9 @@
  * -# @ref NEGaussian5x5
  * -# @ref NEScaleKernel
  *
+ * @deprecated This function is deprecated and is intended to be removed in 21.05 release
+ *
+ *
  */
 class NEGaussianPyramidOrb : public NEGaussianPyramid
 {