joystick: Quit drivers in reverse order to ensure dependencies are not broken

SDL_WINDOWS_JoystickDriver depends on callbacks in SDL_RAWINPUT_JoystickDriver
and SDL_HIDAPI_JoystickDriver being available. It also manages the common
WindowProc used for joystick detection in both WINDOWS and RAWINPUT drivers.

If we don't tear them down backwards, there's a window of time where we could
invoke RAWINPUT_WindowProc() after RAWINPUT_JoystickQuit() was called.

src/joystick/SDL_joystick.c

@@ -1131,8 +1131,8 @@ SDL_JoystickQuit(void)
         SDL_JoystickClose(SDL_joysticks);
     }
 
-    /* Quit the joystick setup */
-    for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
+    /* Quit drivers in reverse order to avoid breaking dependencies between drivers */
+    for (i = SDL_arraysize(SDL_joystick_drivers) - 1; i >= 0; --i) {
        SDL_joystick_drivers[i]->Quit();
     }