SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b


[ROCm/hip-tests commit: 6c23e25c86]

projects/hip-tests/catch/unit/kernel/hipTestGlobalVariable.cc

@@ -99,3 +99,8 @@ TEST_CASE("Unit_kernel_chkGlobalArrAndGlobalVaribleViaKernelFn") {
   runTestConstantGlobalVar();
   runTestGlobalArray();
 }
+
+/**
+* End doxygen group KernelTest.
+* @}
+*/