COMPMID-792: Update doctrings of CL kernels supporting broadcast operations

Change-Id: I71146a83c67c4b193ef1e79d78bd80f9449781e2
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/118748
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLArithmeticAddition.h b/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
index 921738d..5b2fc8c 100644
--- a/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
+++ b/arm_compute/runtime/CL/functions/CLArithmeticAddition.h
@@ -41,10 +41,12 @@
 public:
     /** Initialise the kernel's inputs, output and convertion policy.
      *
-     * @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.
+     * @param[in, out] input1 First tensor input. Data types supported: U8/QS8/QS16/S16/F16/F32.
+     *                        The input tensor is [in, out] because its TensorInfo might be modified inside the kernel in case of broadcasting of dimension 0.
+     * @param[in, out] 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.
+     *                        The input tensor is [in, out] because its TensorInfo might be modified inside the kernel in case of broadcasting of dimension 0.
+     * @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(ICLTensor *input1, ICLTensor *input2, ICLTensor *output, ConvertPolicy policy);
     /** Static function to check if given info will lead to a valid configuration of @ref CLArithmeticAddition