staging: iio: Documentation sysfs-bus-iio add power_mode
staging: iio: Documentation sysfs-bus-iio add power_mode

Add description about in_accelX_power_mode and
in_accel_power_mode_available.

Signed-off-by: Oleksandr Kravchenko <4e5f2b6ab793baf802fe9cd39d665426e95bd946@globallogic.com>
Signed-off-by: Jonathan Cameron <09f65b71b7655725897b2fd41a09a0cefe2e1ace@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs