Merge "Revert "AlarmManagerService: remove legacy /dev/alarm support""
am: 6fb921a61b

* commit '6fb921a61b0ca6bac8002e0fdbeb521453dce408':
  Revert "AlarmManagerService: remove legacy /dev/alarm support"

Change-Id: I7cfaa210c181c9f3754727797609d3ed4ce3244e