COMPMID-2308: NEConvolutionLayer: support QUANT8_SYMM_PER_CHANNEL filters

Change-Id: Ic1bf5f0d21ccd525f84213a360f7e199d7f50577
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2177
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h b/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
index 354ae21..6467a8d 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -62,15 +62,15 @@
      * The input matrices @p input0 and @p input1 must be the output of the kernels: @ref NEGEMMInterleave4x4Kernel and @ref NEGEMMTranspose1xWKernel. These two
      * kernels change the layout of the original matrices to be more cache-friendly.
      *
-     * @param[in]  input0 Input tensor containing the interleaved Matrix A. Data type supported: QASYMM8
-     * @param[in]  input1 Input tensor containing the transposed1xW Matrix B. Data type supported: same as @p input0
+     * @param[in]  input0 Input tensor containing the interleaved Matrix A. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED
+     * @param[in]  input1 Input tensor containing the transposed1xW Matrix B. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED/QSYMM8_PER_CHANNEL
      * @param[out] output Output tensor to store the result of matrix multiplication. Data type supported: S32
      */
     void configure(const ITensor *input0, const ITensor *input1, ITensor *output);
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMLowpMatrixMultiplyKernel
      *
-     * @param[in] input0 Input tensor info containing the interleaved Matrix A. Data type supported: QASYMM8
-     * @param[in] input1 Input tensor info containing the transposed Matrix B. Data type supported: same as @p input0
+     * @param[in] input0 Input tensor info containing the interleaved Matrix A. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED
+     * @param[in] input1 Input tensor info containing the transposed Matrix B. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED/QSYMM8_PER_CHANNEL
      * @param[in] output Output tensor info to store the result of matrix multiplication. Data type supported: S32
      *
      * @return a status