Initialize the parent of the IIO device to the device that registered it.
This makes sure that the IIO device appears the right level in the device
hierarchy.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>