* CAF's init.qcom.early_boot.sh checks /persist/alarm/powerOffAlarmSet
before setting ro.alarm_boot, but on Oreo nothing writes to that
file, thus code is never executed and the prop is never set.
* Without ro.alarm_boot=true, the system will boot normally instead of
boot to min framework even on rtc, and alarm will ring after boot
completed.
Change-Id: Ie4d30358314337c229a66a16195f675198ef7d52