arm_compute v18.01

Change-Id: I9bfa178c2e38bfd5fc812e62aab6760d87748e05
diff --git a/src/runtime/CL/CLPyramid.cpp b/src/runtime/CL/CLPyramid.cpp
index 7cd5518..865f389 100644
--- a/src/runtime/CL/CLPyramid.cpp
+++ b/src/runtime/CL/CLPyramid.cpp
@@ -61,6 +61,7 @@
     const bool  is_orb_scale = (SCALE_PYRAMID_ORB == _info.scale());
     TensorShape tensor_shape = _info.tensor_shape();
 
+    // Note: Look-up table used by the OpenVX sample implementation
     const std::array<float, 4> c_orbscale =
     {
         {