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/core/Helpers.inl b/arm_compute/core/Helpers.inl
index 1e56534..3672692 100644
--- a/arm_compute/core/Helpers.inl
+++ b/arm_compute/core/Helpers.inl
@@ -217,7 +217,7 @@
     return false;
 }
 
-inline bool auto_init_if_empty(ITensorInfo &info_sink, ITensorInfo &info_source)
+inline bool auto_init_if_empty(ITensorInfo &info_sink, const ITensorInfo &info_source)
 {
     if(info_sink.tensor_shape().total_size() == 0)
     {