AOD: Hold WakeLocks 100ms beyond release

Ensures (hopefully) that the underlying systems
have finished pushing the frames by the time the WakeLock is
released.

Bug: 36506840
Test: none, it is a pain to test this. Code is simple enough though.
Change-Id: I7b2f145f92319d5436a167d90b4703260ee08de6
3 files changed