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/CLThresholdKernel.h b/arm_compute/core/CL/kernels/CLThresholdKernel.h
index d7a6ae2..7b0c361 100644
--- a/arm_compute/core/CL/kernels/CLThresholdKernel.h
+++ b/arm_compute/core/CL/kernels/CLThresholdKernel.h
@@ -52,5 +52,5 @@
     void configure(const ICLTensor *input, ICLTensor *output, uint8_t threshold,
                    uint8_t false_value, uint8_t true_value, ThresholdType type, uint8_t upper);
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_NETHRESHOLDKERNEL_H__ */