docs: iio: adis16475: fix device files tables

Remove in_accel_calibbias_x and in_anglvel_calibbias_x device files
description, as they do not exist and were added by mistake.
Add correct naming for in_accel_y_calibbias and in_anglvel_y_calibbias
device files and update their description.

Fixes: 8243b2877eef ("docs: iio: add documentation for adis16475 driver")
Signed-off-by: Ramona Gradinariu <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

Documentation/iio/adis16475.rst

···
 +-------------------------------------------+----------------------------------------------------------+
 | in_accel_x_calibbias                      | Calibration offset for the X-axis accelerometer channel. |
 +-------------------------------------------+----------------------------------------------------------+
-| in_accel_calibbias_x                      | x-axis acceleration offset correction                    |
-+-------------------------------------------+----------------------------------------------------------+
 | in_accel_x_raw                            | Raw X-axis accelerometer channel value.                  |
 +-------------------------------------------+----------------------------------------------------------+
-| in_accel_calibbias_y                      | y-axis acceleration offset correction                    |
+| in_accel_y_calibbias                      | Calibration offset for the Y-axis accelerometer channel. |
 +-------------------------------------------+----------------------------------------------------------+
 | in_accel_y_raw                            | Raw Y-axis accelerometer channel value.                  |
 +-------------------------------------------+----------------------------------------------------------+
···
 +---------------------------------------+------------------------------------------------------+
 | in_anglvel_x_calibbias                | Calibration offset for the X-axis gyroscope channel. |
 +---------------------------------------+------------------------------------------------------+
-| in_anglvel_calibbias_x                | x-axis gyroscope offset correction                   |
-+---------------------------------------+------------------------------------------------------+
 | in_anglvel_x_raw                      | Raw X-axis gyroscope channel value.                  |
 +---------------------------------------+------------------------------------------------------+
-| in_anglvel_calibbias_y                | y-axis gyroscope offset correction                   |
+| in_anglvel_y_calibbias                | Calibration offset for the Y-axis gyroscope channel. |
 +---------------------------------------+------------------------------------------------------+
 | in_anglvel_y_raw                      | Raw Y-axis gyroscope channel value.                  |
 +---------------------------------------+------------------------------------------------------+