[Android] Double inputs/Unintended clicking. Request for option to disable touch mouse input

Created by: Denshadego

First, thanks for your work on this great emulator/core. I got to experience Amiga games for the first time with it, and features like the on-screen keyboard make it a breeze.

As the title says, an option to disable touchscreen mouse input in Android would be much ppreciated. As it is now, when using a gamepad overlay to press, for example, up, it also registers as a mouse click or movement, which makes almost impossible to play some games when every button press is also a mouse click.

Dragging the mouse and clicking small in game buttons with the fingers is impressice. With a dungeon crawler for example, in dosbox pure, one can disable touch mouse and emulate the mouse with the dpad/analog stick (virtual), and maneuver the game's interface without a second input in the way.