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/kernels/NECumulativeDistributionKernel.h b/arm_compute/core/NEON/kernels/NECumulativeDistributionKernel.h
index 8239225..e444679 100644
--- a/arm_compute/core/NEON/kernels/NECumulativeDistributionKernel.h
+++ b/arm_compute/core/NEON/kernels/NECumulativeDistributionKernel.h
@@ -75,6 +75,5 @@
 private:
     static const uint32_t _histogram_size = 256; /**< Default histogram size of 256. */
 };
-}
-
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_NECUMULATIVEDISTRIBUTIONKERNEL_H__ */