docs/regmap/adi_regmap_adc.txt:
- add softspan to regmap
library/common/up_adc_channel.v
- update copyright year header
- add softspan to regmap
library/common/up_adc_common.v
- update minor version
Signed-off-by: John Erasmus Mari Geronimo <Johnerasmusmari.Geronimo@analog.com>