dinput: Fix counting non maped axis as pov [try 2]

[Vitaliy Margolen]

Ričardas Barkauskas wrote:
> This time with patch. Sorry.
> Fixes crash with dinput joystick test and pcsx2 lilypad plugin on my system..
> 
> -                else if (tokens < 15)
> +                else if (tokens >=8 && tokens < 15)
Nice catch, this is indeed a bug when token == -1.

Vitaliy.