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/CLPixelWiseMultiplicationKernel.h b/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
index a5909d1..309a202 100644
--- a/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
+++ b/arm_compute/core/CL/kernels/CLPixelWiseMultiplicationKernel.h
@@ -68,6 +68,5 @@
     const ICLTensor *_input2;
     ICLTensor       *_output;
 };
-}
-
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_CLPIXELWISEMULTIPLICATIONKERNEL_H__ */