iio: pressure: bmp280: Improve indentation and line wrapping

Fix indentations that are not following the standards, remove
extra white lines and add missing white lines.
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://lore.kernel.org/r/20240429190046.24252-2-vassilisamir@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>