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/src/core/CL/kernels/CLActivationLayerKernel.cpp b/src/core/CL/kernels/CLActivationLayerKernel.cpp
index 8172aaf..c097b5f 100644
--- a/src/core/CL/kernels/CLActivationLayerKernel.cpp
+++ b/src/core/CL/kernels/CLActivationLayerKernel.cpp
@@ -68,8 +68,7 @@
     {
         ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
         // Output auto inizialitation if not yet initialized
-        auto_init_if_empty(*output,
-                           *input->clone());
+        auto_init_if_empty(*output, *input);
     }
 
     const unsigned int num_elems_processed_per_iteration = 16 / input->element_size();