Fix test suite compile in Ubuntu 22.04 (#1353)

CharlieL7 · web-flow · commit af7f22d8ff3d · 2022-08-26T13:25:26.000-04:00
diff --git a/src/include/migraphx/target_assignments.hpp b/src/include/migraphx/target_assignments.hpp
@@ -25,6 +25,7 @@
 #define MIGRAPHX_GUARD_MIGRAPHX_ASSIGNMENT_HPP
 
 #include <unordered_map>
+#include <string>
 
 #include <migraphx/instruction_ref.hpp>
 
