COMPMID-3562: Support QASYMM8_SIGNED in CLArgMinMaxLayerKernel

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: I6c6efde06f000834b0b770889e3eb5ee0d14b027
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3476
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLArgMinMaxLayer.h b/arm_compute/runtime/CL/functions/CLArgMinMaxLayer.h
index b0d29bc..997bb79 100644
--- a/arm_compute/runtime/CL/functions/CLArgMinMaxLayer.h
+++ b/arm_compute/runtime/CL/functions/CLArgMinMaxLayer.h
@@ -55,7 +55,7 @@
     CLArgMinMaxLayer(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
     /** Set the input and output tensors.
      *
-     * @param[in]  input  Input source tensor. Data types supported: QASYMM8/F16/F32.
+     * @param[in]  input  Input source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
      * @param[in]  axis   Axis to find max/min index.
      * @param[out] output Output source tensor. Data types supported: U32/S32.
      * @param[in]  op     Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN
@@ -64,7 +64,7 @@
     /** Set the input and output tensors.
      *
      * @param[in]  compile_context The compile context to be used.
-     * @param[in]  input           Input source tensor. Data types supported: QASYMM8/F16/F32.
+     * @param[in]  input           Input source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
      * @param[in]  axis            Axis to find max/min index.
      * @param[out] output          Output source tensor. Data types supported: U32/S32.
      * @param[in]  op              Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN
@@ -72,7 +72,7 @@
     void configure(const CLCompileContext &compile_context, const ICLTensor *input, int axis, ICLTensor *output, const ReductionOperation &op);
     /** Static function to check if given info will lead to a valid configuration of @ref CLArgMinMaxLayer
      *
-     * @param[in] input  Input source tensor info. Data types supported: QASYMM8/F16/F32.
+     * @param[in] input  Input source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
      * @param[in] axis   Axis to find max/min index.
      * @param[in] output Output source tensor info. Data types supported: U32/S32.
      * @param[in] op     Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN