iio: adc: rockchip_saradc: better prefix for channel constant

As suggested give the current ADC_CHANNEL constant a distinct
and consistent prefix.

Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Heiko Stuebner 2020-06-24 01:30:10 +02:00 • committed by Jonathan Cameron
commit 71eb7c855b