COMPMID-446: Add support for QS8/QS16 CL Arithmetic Add/Sub

Change-Id: I84fc457a9c28856a11322944822d2fabaf92e8e4
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/80528
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLArithmeticAddition.h b/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
index feadf39..f888256 100644
--- a/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
+++ b/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
@@ -33,7 +33,7 @@
 
 /** Basic function to run @ref CLArithmeticAdditionKernel
  *
- * @note The tensor data type for the inputs must be U8, S16, F16, F32.
+ * @note The tensor data type for the inputs must be U8/QS8/QS16/S16/F16/F32.
  * @note The function performs an arithmetic addition between two tensors.
  */
 class CLArithmeticAddition : public ICLSimpleFunction
@@ -41,9 +41,9 @@
 public:
     /** Initialise the kernel's inputs, output and convertion policy.
      *
-     * @param[in]  input1 First tensor input. Data types supported: U8, S16, F16, F32.
-     * @param[in]  input2 Second tensor input. Data types supported: U8, S16, F16, F32.
-     * @param[out] output Output tensor. Data types supported: U8 (Only if both inputs are U8), S16, F16, F32.
+     * @param[in]  input1 First tensor input. Data types supported: U8/QS8/QS16/S16/F16/F32.
+     * @param[in]  input2 Second tensor input. Data types supported: U8, QS8 (only if @p input1 is QS8), QS16 (only if @p input1 is QS16), S16/F16/F32.
+     * @param[out] output Output tensor. Data types supported: U8 (Only if both inputs are U8), QS8 (only if both inputs are QS8), QS16 (only if both inputs are QS16), S16/F16/F32.
      * @param[in]  policy Policy to use to handle overflow.
      */
     void configure(const ICLTensor *input1, const ICLTensor *input2, ICLTensor *output, ConvertPolicy policy);