COMPMID-2753: Add support for QASYMM8_SIGNED in CL kernels/functions

Change-Id: I7ed2d43f33458ba0571323f6fa9dc2e45fcd672a
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2516
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLScale.h b/arm_compute/runtime/CL/functions/CLScale.h
index 2bef54e..9a201dc 100644
--- a/arm_compute/runtime/CL/functions/CLScale.h
+++ b/arm_compute/runtime/CL/functions/CLScale.h
@@ -39,7 +39,7 @@
 public:
     /** Initialize the function's source, destination, interpolation type and border_mode.
      *
-     * @param[in,out] input                 Source tensor. Data types supported: U8/QASYMM8/S16/F16/F32. (Written to only for @p border_mode != UNDEFINED)
+     * @param[in,out] input                 Source tensor. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/F16/F32. (Written to only for @p border_mode != UNDEFINED)
      * @param[out]    output                Destination tensor. Data types supported: Same as @p input
      *                                      All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane.
      * @param[in]     policy                The interpolation type.
@@ -54,7 +54,7 @@
 
     /** Static function to check if given info will lead to a valid configuration of @ref CLScale
      *
-     * @param[in] input                 Source tensor info. Data types supported: U8/QASYMM8/S16/F16/F32.
+     * @param[in] input                 Source tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/F16/F32.
      * @param[in] output                Output tensor info. Data type supported: Same as @p input
      *                                  All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane.
      * @param[in] policy                The interpolation type.