COMPMID-417 - Added arm_compute comment at the end of NEON header files

Change-Id: I288f409c8f51fac7ceb7b3f301105a74ffc737fd
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88785
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/arm_compute/core/NEON/NEColorConvertHelper.inl b/arm_compute/core/NEON/NEColorConvertHelper.inl
index 9be7c8a..9a9caef 100644
--- a/arm_compute/core/NEON/NEColorConvertHelper.inl
+++ b/arm_compute/core/NEON/NEColorConvertHelper.inl
@@ -885,4 +885,4 @@
     },
     in, out_y, out_u, out_v);
 }
-}
+} // namespace arm_compute