Fixed wakelock not acquired long enough for alert reminder

1. Start queing the alert reminder after tone playing finishes.
2. Fixed that wakelock not acquired long enough for alert reminder
   so the reminder notification and vibration were not consistenly
   played while the device screen is off.
3. Alert reminder vibration now honors the vibration settings.

Test: Manual
bug: 38301329
Merged-In: I6ab7ac120753b7c4d3683cd97ea8e97037a8b797
Change-Id: I6ab7ac120753b7c4d3683cd97ea8e97037a8b797
4 files changed