iio: ABI: document ad4695 new attributes

The ad4695 driver now supports calibration using the
in_voltageY_calib{scale,bias}[_available] attributes.

Only one of these was documented before. This adds rest.

Signed-off-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

Author: dlech

Documentation/ABI/testing/sysfs-bus-iio

@@ -541,6 +541,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibbias
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias
 KernelVersion:	2.6.35
@@ -556,6 +557,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibbias_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias_available
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias_available
 KernelVersion:  5.8
 Contact:        [email protected]
@@ -603,6 +605,7 @@ Description:
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminanceY_calibscale_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_calibscale_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximityY_calibscale_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale_available
 KernelVersion:	4.8
 Contact:	[email protected]
 Description: