Allow simultaneous kb/m+gamepad input

[soredake]

Is there an existing issue for this?

• [X] I have searched the existing issues

What feature are you suggesting?

It would be nice if i can do simultaneous kb/m+gamepad input in yuzu.

Why would this feature be useful?

For playing visual novels for example, i start game and load save with gamepad and then will use keyboard as i need only few buttons.