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

Change-Id: Ide2ff463ddd10d5dda0a09366fae462f716eb1c1
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88051
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/arm_compute/core/CL/kernels/CLHOGDetectorKernel.h b/arm_compute/core/CL/kernels/CLHOGDetectorKernel.h
index 47bd054..47c6365 100644
--- a/arm_compute/core/CL/kernels/CLHOGDetectorKernel.h
+++ b/arm_compute/core/CL/kernels/CLHOGDetectorKernel.h
@@ -77,6 +77,5 @@
     ICLDetectionWindowArray *_detection_windows;
     cl::Buffer              *_num_detection_windows;
 };
-}
-
+} // namespace arm_compute
 #endif /* __ARM_COMPUTE_CLHOGDETECTORKERNEL_H__ */