COMPMID-661: Fix beta in softmax_layer kernel

Change-Id: Iebb01c9e3d87ed17fa7991e157cfd15d795a53f1
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/95281
Reviewed-by: Robert Hughes <robert.hughes@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/src/core/CL/cl_kernels/softmax_layer.cl b/src/core/CL/cl_kernels/softmax_layer.cl
index 5bc43ef..fc45ae6 100644
--- a/src/core/CL/cl_kernels/softmax_layer.cl
+++ b/src/core/CL/cl_kernels/softmax_layer.cl
@@ -363,7 +363,7 @@
 #ifdef BETA
     // Initialize beta
     VEC_DATA_TYPE(DATA_TYPE, VECTOR_SIZE)
-    beta = (VEC_DATA_TYPE(DATA_TYPE, VECTOR_SIZE))BETA_VAL;
+    beta = (VEC_DATA_TYPE(DATA_TYPE, VECTOR_SIZE))BETA;
 #endif /* BETA */
 
     // Initialize local maximum