An (ugly) hack to make some Bluetooth Gamepads to work.

The problem with BT gamepads is the fact they tend to show up as multiple gamepads, while PPSSPP only recognises two. Until the whole gamepad code is reworked, this will allow them to work by always returning inputPlayerA in case of an additional recognised gamepad. Fixes issue #3314
Merge pull request #119 from PewnyPL/master

An (ugly) hack to make some Bluetooth Gamepads to work.