Add tilt control support for right analog stick

[rankcody]

What should happen

On Android, the tilt control function should expand its functionality to include the ability to control the optional right analog stick with tilt control in addition to the already existing tilt control types (i.e. left analog, D-pad, face buttons, L/R).

Who would this benefit

Controlling the right analog stick with the tilt function would be useful for games that have patches for it (ex. Peace Walker). For example, for FPS style gameplay, tilt control would allow more accurate and tactile aiming compared to touch control.

Platform (if relevant)

Android

Games this would be useful in

Any games with patches for using the right analog stick (ex. Peace Walker)

Other emulators or software with a similar feature

Off of the top of my head, in Galaxy on Fire 2, there are two aim options, joystick aim and gyro aim option. The gyro aim is much easier to aim with, in my opinion.

Checklist

• Check the latest git build in case it's already implemented.
• Search for other requests of the same feature.