Corrections for printf test with floating point limits arguments (#1940)

According to work plan from issue #1058

test_conformance/printf/test_printf.h

@@ -62,7 +62,7 @@ enum PrintfTestType
 
 struct printDataGenParameters
 {
-    const char* genericFormat;
+    std::vector<std::string> genericFormats;
     const char* dataRepresentation;
     const char* vectorFormatFlag;
     const char* vectorFormatSpecifier;