SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b


[ROCm/hip-tests commit: 6c23e25c86]

projects/hip-tests/catch/performance/stream/hipExtStreamGetCUMask.cc

@@ -65,3 +65,8 @@ static void RunBenchmark() {
 TEST_CASE("Performance_hipExtStreamGetCUMask") {
   RunBenchmark();
 }
+
+/**
+* End doxygen group PerformanceTest.
+* @}
+*/