Decide if motor goes to 3V3, BAT+ or VSYS
Things to consider:
- Currently the motor is connected to 3V3
- VSYS and BAT+ are usually higher voltage than 3V3 (between 3.5 V and 4.7 V)
- The motor might have more power on VSYS or BAT+
- I'm not sure if the motor is still in spec at > 3.3 V
- The motor does not need a regulated supply and is an extra (unnecessary) load for the switching regulator
- VSYS is cut when the battery is low. BAT+ is not.