COMPMID-2792: Add support for QASYMM8_SIGNED in CLGEMMLowpMatrixMultiplyReshapedKernel

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: I005e604253394f31173f37ec0296caf76b5e697c
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/c/VisualCompute/ComputeLibrary/+/227008
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2798
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/arm_compute/core/CL/kernels/CLGEMMLowpMatrixMultiplyReshapedKernel.h b/arm_compute/core/CL/kernels/CLGEMMLowpMatrixMultiplyReshapedKernel.h
index 36b9403..64a9812 100644
--- a/arm_compute/core/CL/kernels/CLGEMMLowpMatrixMultiplyReshapedKernel.h
+++ b/arm_compute/core/CL/kernels/CLGEMMLowpMatrixMultiplyReshapedKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 ARM Limited.
+ * Copyright (c) 2019-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -49,9 +49,9 @@
     CLGEMMLowpMatrixMultiplyReshapedKernel &operator=(CLGEMMLowpMatrixMultiplyReshapedKernel &&) = default;
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  input0    Input tensor containing the LHS reshaped matrix. Data type supported: QASYMM8. The number of dimensions for the LHS matrix must be less or equal than 4.
+     * @param[in]  input0    Input tensor containing the LHS reshaped matrix. Data type supported: QASYMM8/QASYMM8_SIGNED. The number of dimensions for the LHS matrix must be less or equal than 4.
      * @param[in]  input1    Input tensor containing the RHS reshaped matrix. Data type supported: same as @p input0. The number of dimensions for the RHS matrix must be less or equal than 3.
-     * @param[out] output    Output tensor to store the result of matrix multiplication. Data type supported: same as @p input0
+     * @param[out] output    Output tensor to store the result of matrix multiplication. Data type supported: S32
      * @param[in]  lhs_info  LHS matrix information used for reshaping the input0 tensor.  Only the following values are supported:
      *                       lhs_info.m0: 2,3,4,5,6,7,8
      *                       lhs_info.k0: 2,3,4,8,16
@@ -67,9 +67,9 @@
     void configure(const ICLTensor *input0, const ICLTensor *input1, ICLTensor *output, const GEMMLHSMatrixInfo &lhs_info, const GEMMRHSMatrixInfo &rhs_info, const GEMMReshapeInfo &gemm_info);
     /** Static function to check if given info will lead to a valid configuration of @ref CLGEMMLowpMatrixMultiplyReshapedKernel
      *
-     * @param[in] input0    Input tensor info containing the LHS reshaped matrix. Data type supported: QASYMM8. The number of dimensions for the LHS matrix must be less or equal than 4.
+     * @param[in] input0    Input tensor info containing the LHS reshaped matrix. Data type supported: QASYMM8/QASYMM8_SIGNED. The number of dimensions for the LHS matrix must be less or equal than 4.
      * @param[in] input1    Input tensor info containing the RHS reshaped matrix. Data type supported: same as @p input0. The number of dimensions for the RHS matrix must be less or equal than 3.
-     * @param[in] output    Output tensor info. Data type supported: same as @p input0
+     * @param[in] output    Output tensor info. Data type supported: S32
      * @param[in] lhs_info  LHS matrix information used for reshaping the input0 tensor.  Only the following values are supported:
      *                      lhs_info.m0: 2,3,4,5,6,7,8
      *                      lhs_info.k0: 2,3,4,8,16