SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b


[ROCm/hip-tests commit: 6c23e25c86]

projects/hip-tests/catch/unit/graph/hipGraphAddMemcpyNode.cc

@@ -289,3 +289,8 @@ TEST_CASE("Unit_hipGraphAddMemcpyNode_Negative_Parameters") {
                   make_hipPos(0, 0, 0), extent, hipMemcpyDeviceToDevice);
   }
 }
+
+/**
+* End doxygen group GraphTest.
+* @}
+*/