COMPMID-418 Add check and fix comments after preprocessor conditions

Change-Id: I1353fd652ee180e3931e58b4ce13d651a48c7e2c
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/79567
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
diff --git a/arm_compute/core/NEON/kernels/NEFastCornersKernel.h b/arm_compute/core/NEON/kernels/NEFastCornersKernel.h
index d9bd6ac..b30ef49 100644
--- a/arm_compute/core/NEON/kernels/NEFastCornersKernel.h
+++ b/arm_compute/core/NEON/kernels/NEFastCornersKernel.h
@@ -69,4 +69,4 @@
     bool          _non_max_suppression; /** true if non-maxima suppression is applied in the next stage */
 };
 }
-#endif
+#endif /* __ARM_COMPUTE_NEFASTCORNERSKERNEL_H__ */