iio: pressure: bmp280: reorder i2c device tables declarations

Change device tables declarations to forward order like in SPI codepath.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com>
Link: https://lore.kernel.org/r/a3969b60e428b9bd29ea1ebc6dd69aa5bbe59da0.1663025017.git.ang.iglesiasg@gmail.com


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>