Populate RELATIVE_X and RELATIVE_Y motion range for touchpad pointer capture mode. am: 1fb4530260 am: 8ed0e785be

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1447899

Change-Id: I2aef5583b7e1d6cdfb217c0ac53e6adc7cbf944a