docs: iio: Fix unexpected indentation for adxl345.
Resolved the following building error:
Documentation/iio/adxl345.rst:161: ERROR: Unexpected indentation. [docutils]
Fixes: fdcb9cb9178a ("docs: iio: add documentation for adxl345 driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20250818124124.5b978e64@canb.auug.org.au
Signed-off-by: Xing Guo <higuoxing@gmail.com>
Link: https://patch.msgid.link/20250819065634.1154322-1-higuoxing@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>