COMPMID-423: Port CLSoftmaxLayer to QS8

Change-Id: I759b7585656d018d7c864425118cd3ec2ca9b0eb
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78908
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLSoftmaxLayer.h b/arm_compute/runtime/CL/functions/CLSoftmaxLayer.h
index 42cfc06..a5b19bd 100644
--- a/arm_compute/runtime/CL/functions/CLSoftmaxLayer.h
+++ b/arm_compute/runtime/CL/functions/CLSoftmaxLayer.h
@@ -49,8 +49,8 @@
     CLSoftmaxLayer();
     /** Set the input and output tensors.
      *
-     * @param[in]  input  Source tensor. Data types supported: F16, F32. Number of channels must be 1.
-     * @param[out] output Destination tensor. Matching input type and channel number.
+     * @param[in]  input  Source tensor. Data types supported: QS8/F16/F32
+     * @param[out] output Destination tensor. Data types supported: same as @p input
      */
     void configure(const ICLTensor *input, ICLTensor *output);