bmi160: Fix gyro range map

The range map was sorted wrong since the function
bmi160_range_to_reg_val() that uses it checks for the user value less
than the range component of the bmi160_range struct. This means that
no matter what range is set, the value will always end up 2000dps.

Signed-off-by: Yuval Peress <peress@google.com>