IVGCVSW-631 Neon support for Softmax beta parameter (F32 only)

Change-Id: Ibf6f038b39f1a4e557f5d04feb08e3d5ef54e223
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112019
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/arm_compute/runtime/GLES_COMPUTE/functions/GCSoftmaxLayer.h b/arm_compute/runtime/GLES_COMPUTE/functions/GCSoftmaxLayer.h
index 19bfb83..e7f8d50 100644
--- a/arm_compute/runtime/GLES_COMPUTE/functions/GCSoftmaxLayer.h
+++ b/arm_compute/runtime/GLES_COMPUTE/functions/GCSoftmaxLayer.h
@@ -51,8 +51,9 @@
      *
      * @param[in]  input  Source tensor. Data types supported: F16/F32
      * @param[out] output Destination tensor. Data types supported: same as @p input
+     * @param[in]  beta   (Optional) A scaling factor for the exponent. Only beta = 1 is supported.
      */
-    void configure(const IGCTensor *input, IGCTensor *output);
+    void configure(const IGCTensor *input, IGCTensor *output, float beta = 1.0f);
 
     // Inherited methods overridden:
     void run() override;