SWDEV-364623 - add proper sync to Unit_hipGraphMemcpyNodeSetParamsToSymbol_Functional (#167)

Change-Id: I7fffb89823c43883f6e3764f2422cb0b1cc12bcf

[ROCm/hip-tests commit: 82339b5234]

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

@@ -233,6 +233,7 @@ void hipGraphMemcpyNodeSetParamsToSymbol_GlobalMem(bool useConstDeviceVar) {
   // Instantiate and launch the graph
   HIP_CHECK(hipGraphInstantiate(&graphExec, graph, nullptr, nullptr, 0));
   HIP_CHECK(hipGraphLaunch(graphExec, 0));
+  HIP_CHECK(hipStreamSynchronize(0));
 
   // Validating the result
   for (int i = 0; i < SIZE; i++) {