COMPMID-3379: Add support for QASYMM8_SIGNED in NEScale
Update QASYMM8_SIGNED support document

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: Ia0cb0d2eed13e7e38b165dc317af06e7f2df4285
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3132
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@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/NEScaleKernel.h b/arm_compute/core/NEON/kernels/NEScaleKernel.h
index e679037..0d0d457 100644
--- a/arm_compute/core/NEON/kernels/NEScaleKernel.h
+++ b/arm_compute/core/NEON/kernels/NEScaleKernel.h
@@ -57,7 +57,7 @@
      * @note dx, dy and offsets have the same dimensions (width and height) of the output tensor
      * @note Using @p policy Area only supports data layout NCHW and input data type U8.
      *
-     * @param[in]  input                 Source tensor. Data types supported: U8/S16/F16/F32.
+     * @param[in]  input                 Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/U8/S16/F16/F32.
      * @param[in]  dx                    Pixel's distance between the X real coordinate and the smallest X following integer. Data type supported: F32
      * @param[in]  dy                    Pixel's distance between the Y real coordinate and the smallest Y following integer. Data type supported: F32
      * @param[in]  offsets               Offset to access the pixel with NEAREST interpolation or the top-left pixel with BILINEAR interpolation in the input tensor. Data type supported: S32.
@@ -77,7 +77,7 @@
      * @note dx, dy and offsets have the same dimensions (width and height) of the output tensor
      * @note Using @p policy Area only supports data layout NCHW and input data type U8.
      *
-     * @param[in] input                 Source tensor. Data types supported: U8/S16/F16/F32.
+     * @param[in] input                 Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/U8/S16/F16/F32.
      * @param[in] dx                    Pixel's distance between the X real coordinate and the smallest X following integer. Data type supported: F32
      * @param[in] dy                    Pixel's distance between the Y real coordinate and the smallest Y following integer. Data type supported: F32
      * @param[in] offsets               Offset to access the pixel with NEAREST interpolation or the top-left pixel with BILINEAR interpolation in the input tensor. Data type supported: S32.