SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b


[ROCm/hip-tests commit: 6c23e25c86]

projects/hip-tests/catch/performance/event/hipEventCreateWithFlags.cc

@@ -80,4 +80,9 @@ TEST_CASE("Performance_hipEventCreateWithFlags") {
       hipEventDefault, hipEventBlockingSync,
       hipEventDisableTiming /*, hipEventInterprocess  disabled until fixed (EXSWHTEC-25) */);
   RunBenchmark(flag);
-}
+}
+
+/**
+* End doxygen group PerformanceTest.
+* @}
+*/