[flang][rt][device] Use enum-set.h as Fortran.h (#119611)

Author: clementval

flang/include/flang/Common/Fortran-consts.h

@@ -9,7 +9,7 @@
 #ifndef FORTRAN_COMMON_FORTRAN_CONSTS_H_
 #define FORTRAN_COMMON_FORTRAN_CONSTS_H_
 
-#include "flang/Common/enum-class.h"
+#include "enum-set.h"
 #include <cstdint>
 
 namespace Fortran::common {