add feature rpirtc
Created by: HRio
Add new feature rpi rtc allowing a hw rtc to be used.
The init script in Alpine Linux since v3.9 looks for /dev/rtc
, if
not found it will switch to swclock.
To make this check work on a Rasberry PI with a mounted rtc and
the following in usercfg.txt
dtoverlay=i2c-rtc,ds3231
we must have rtc drivers available already initramfs.