[hip] Add the missing header <sstream>. (#1498)

[ROCm/hip commit: 4d632166bb]
Tá an tiomantas seo le fáil i:
mhbliao
2019-10-04 04:09:29 -04:00
tiomanta ag Maneesh Gupta
tuismitheoir aeba964a7e
tiomantas 4b05ebc194
+1
Féach ar an gComhad
@@ -27,6 +27,7 @@ THE SOFTWARE.
#include <iostream>
#include <iomanip>
#include <sstream>
#include <string>
//---
// Helper functions to convert HIP function arguments into strings.