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/NEFixedPoint.inl b/arm_compute/core/NEON/NEFixedPoint.inl
index 86b789d..d401b0e 100644
--- a/arm_compute/core/NEON/NEFixedPoint.inl
+++ b/arm_compute/core/NEON/NEFixedPoint.inl
@@ -1995,4 +1995,4 @@
     };
     return res;
 }
-}
+} // namespace arm_compute