Make NEON Pooling kernels and functions state-less

Partially resolves COMPMID-3999

Change-Id: Ib39d40694df5c5f0a9401488e0c3af3ac26e8c55
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4984
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/NEON/kernels/NEMaxUnpoolingLayerKernel.h b/src/core/NEON/kernels/NEMaxUnpoolingLayerKernel.h
index 8cdfe2b..f422728 100644
--- a/src/core/NEON/kernels/NEMaxUnpoolingLayerKernel.h
+++ b/src/core/NEON/kernels/NEMaxUnpoolingLayerKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020 Arm Limited.
+ * Copyright (c) 2020-2021 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -56,7 +56,7 @@
      *
      * @param[in]  input     Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
      * @param[in]  indices   Tensor containing the offset to store the input elements in the output tensor.
-     *                       @ref NEPoolingLayerKernel with indices should precede this function in order to
+     *                       @ref cpu::kernels::CpuPoolingKernel with indices should precede this function in order to
      *                       properly reconstruct the output tensor.
      *                       The tensor shape of this tensor has to be equal to the input tensor shape. Data type supported: U32.
      * @param[out] output    Destination tensor. Data types supported: Same as @p input.