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/tests/validation/system_tests/CL/AlexNet.cpp b/tests/validation/system_tests/CL/AlexNet.cpp
index bbbe4cd..a7c6ea4 100644
--- a/tests/validation/system_tests/CL/AlexNet.cpp
+++ b/tests/validation/system_tests/CL/AlexNet.cpp
@@ -106,5 +106,5 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 BOOST_AUTO_TEST_SUITE_END()
-#endif
+#endif /* DOXYGEN_SKIP_THIS */
 #endif /* INTERNAL_ONLY */
diff --git a/tests/validation/system_tests/CL/LeNet5.cpp b/tests/validation/system_tests/CL/LeNet5.cpp
index c05690d..42c5bd5 100644
--- a/tests/validation/system_tests/CL/LeNet5.cpp
+++ b/tests/validation/system_tests/CL/LeNet5.cpp
@@ -89,5 +89,5 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 BOOST_AUTO_TEST_SUITE_END()
-#endif
+#endif /* DOXYGEN_SKIP_THIS */
 #endif /* INTERNAL_ONLY */
diff --git a/tests/validation/system_tests/NEON/AlexNet.cpp b/tests/validation/system_tests/NEON/AlexNet.cpp
index 1bb17d4..3656892 100644
--- a/tests/validation/system_tests/NEON/AlexNet.cpp
+++ b/tests/validation/system_tests/NEON/AlexNet.cpp
@@ -107,5 +107,5 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 BOOST_AUTO_TEST_SUITE_END()
-#endif
+#endif /* DOXYGEN_SKIP_THIS */
 #endif /* INTERNAL_ONLY */
diff --git a/tests/validation/system_tests/NEON/LeNet5.cpp b/tests/validation/system_tests/NEON/LeNet5.cpp
index 5a311ef..fedc119 100644
--- a/tests/validation/system_tests/NEON/LeNet5.cpp
+++ b/tests/validation/system_tests/NEON/LeNet5.cpp
@@ -89,5 +89,5 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 BOOST_AUTO_TEST_SUITE_END()
-#endif
+#endif /* DOXYGEN_SKIP_THIS */
 #endif /* INTERNAL_ONLY */