[automerged blank] DO NOT MERGE: Move AlarmManager to apex 2p: 7c0ee35b1e

Blank merge reason: commit message contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13756708

Change-Id: I9cf143de858f1b1554167f07796be3205aa36309