Re: [PATCH v6 0/1] MR5211: ntdll/unix: Use termios2 for serial when possible.

[Kirill Zhumarin (＠kirill.zhumarin)]

I think this variant is more hacky and less reliable (in the case when `asm/termbits.h` is changed).
I intentionally avoided this in the first version of MR by putting this ambiguous code into `serial_termios2.c`.

But, I can implement this variant if there is a final decision.