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/NELaplacianPyramid.h b/arm_compute/runtime/NEON/functions/NELaplacianPyramid.h
index eecd9d5..9ca3014 100644
--- a/arm_compute/runtime/NEON/functions/NELaplacianPyramid.h
+++ b/arm_compute/runtime/NEON/functions/NELaplacianPyramid.h
@@ -50,6 +50,9 @@
  *  difference between the two tensors is the corresponding level L(i) of the Laplacian pyramid.
  *  L(i) = I(i) - Gaussian5x5(I(i))
  *  Level 0 has always the same first two dimensions as the input tensor.
+ *
+ * @deprecated This function is deprecated and is intended to be removed in 21.05 release
+ *
 */
 class NELaplacianPyramid : public IFunction
 {