During SerDes rework the helper functions were temporarily
renamed to ..._new(). Fix the leftovers by
- giving the functions a new rtsds_ prefix nad
- dropping the _new appendix.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/20034
Signed-off-by: Robert Marko <robimarko@gmail.com>