Documentation:devicetree:bindings:iio:dac: Fix val

Documentation:devicetree:bindings:iio:dac: Fix val

commit 8fc4f038fa832ec3543907fdcbe1334e1b0a8950 upstream.

A correct value for output-range-microvolts is -5 to 5 Volts
not -5 to 5 milivolts

Fixes: e904cc899293f ("dt-bindings: iio: dac: AD5766 yaml documentation")
Signed-off-by: Mihail Chindris <mihail.chindris@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20211007080035.2531-6-mihail.chindris@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>