Update the GeomagneticField coefficients according to the World Magnetic Model 2020-2025 values and specify the base time in UTC since calls to System.currentTimeMillis() will return a UTC based time. Signed-off-by: Cory Hockenbury <chockenbury@gmail.com> Change-Id: I7614d420ad55129b04e0dfa9310e39d715ed2da7