Fix "auto battery saver notification comes back"

Bug: 78017511
Test: Manual:
- Run them:
adb shell settings delete global low_power
adb shell settings delete global low_power_sticky
adb shell settings delete global low_power_trigger_level
adb shell settings delete secure low_power_manual_activation_count
adb shell settings delete secure low_power_warning_acknowledged
adb shell settings delete secure suppress_auto_battery_saver_suggestion
- Unplug
- Toggle BS 4 times -> the "Tap to schedule battery saver" notification shows up
- Dismiss the notification
- Wait until the battery percent drops
- Make sure the notification stays dismissed.

Change-Id: I82cbd0110ab5d140c9e9b5b449577040e51032c6