ECR #333755 - Changes to Utils to build on Windows

[git-p4: depot-paths = "//depot/stg/hsa/drivers/hsa/runtime/": change = 1131149]


[ROCm/ROCR-Runtime commit: 2eab8a72d4]

projects/rocr-runtime/samples/common/common_utility.cpp

@@ -16,7 +16,7 @@ double CalcMedian(vector<double> scores)
 
 double CalcMean(vector<double> scores)
 {
-	double mean;
+	double mean = 0;
 	size_t size = scores.size();
 
        for (int i=0; i<size; ++i)