COMPMID-409: Add support for QS8 and QS16 CLPixelWiseMultiplication.

Change-Id: I7f66d49d746ba9fb6e726ccab83d3a97b8ddef80
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78491
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h b/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
index 6fbbe95..a5909d1 100644
--- a/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
+++ b/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
@@ -49,11 +49,11 @@
     CLPixelWiseMultiplicationKernel &operator=(CLPixelWiseMultiplicationKernel &&) = default;
     /** Initialise the kernel's input, output and border mode.
      *
-     * @param[in]  input1          An input tensor. Data types supported: U8, S16, F16, F32.
-     * @param[in]  input2          An input tensor. Data types supported: U8, S16, F16, F32.
-     * @param[out] output          The output tensor, Data types supported: U8 (Only if both inputs are U8), S16, F16, F32.
+     * @param[in]  input1          An input tensor. Data types supported: U8/QS8/QS16/S16/F16/F32.
+     * @param[in]  input2          An input tensor. Data types supported: same as @p input1.
+     * @param[out] output          The output tensor, Data types supported: same as @p input1. Note: U8 (QS8, QS16) requires both inputs to be U8 (QS8, QS16).
      * @param[in]  scale           Scale to apply after multiplication.
-     *                             Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15.
+     *                             Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15. For QS8 and QS16 scale must be 1.
      * @param[in]  overflow_policy Overflow policy. Supported overflow policies: Wrap, Saturate
      * @param[in]  rounding_policy Rounding policy. Supported rounding modes: to zero, to nearest even.
      */