Remove first I2C that is not reachable from the pinout and is not connected to anything. Move I2C1 as the first I2C device.
Update FXOS8700 I2C device in board configuration
This allows a board configuration to select which kind of averaging
should be applied to the pin instead of always using 32 sample average.
Very high impedance sources may need to disable hardware averaging in
order to give correct values, the on-chip temperature sensor is one such
signal source.
