Add Thrustmaster TMX VID & PID to wheel device list.

src/joystick/SDL_joystick.c

@@ -366,6 +366,7 @@ static Uint32 initial_wheel_devices[] = {
     MAKE_VIDPID(0x044f, 0xb65e), // Thrustmaster T500RS
     MAKE_VIDPID(0x044f, 0xb664), // Thrustmaster TX (initial mode)
     MAKE_VIDPID(0x044f, 0xb669), // Thrustmaster TX (active mode)
+    MAKE_VIDPID(0x044f, 0xb67f), // Thrustmaster TMX
     MAKE_VIDPID(0x044f, 0xb691), // Thrustmaster TS-XW (initial mode)
     MAKE_VIDPID(0x044f, 0xb692), // Thrustmaster TS-XW (active mode)
     MAKE_VIDPID(0x0483, 0x0522), // Simagic Wheelbase (including M10, Alpha Mini, Alpha, Alpha U)