[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/ABI/testing/sysfs-bus-iio-potentiometer-mcp4531 b/src/kernel/linux/v4.19/Documentation/ABI/testing/sysfs-bus-iio-potentiometer-mcp4531
new file mode 100644
index 0000000..2a91fbe
--- /dev/null
+++ b/src/kernel/linux/v4.19/Documentation/ABI/testing/sysfs-bus-iio-potentiometer-mcp4531
@@ -0,0 +1,8 @@
+What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw_available
+Date:		October 2016
+KernelVersion:	4.9
+Contact:	Peter Rosin <peda@axentia.se>
+Description:
+		The range of available values represented as the minimum value,
+		the step and the maximum value, all enclosed in square brackets.
+		Example: [0 1 256]