Improve camera launch time from double tap power

Wake the device up early when camera gesture is triggered and device is
going to sleep, this could speed up finishing going to sleep state and
prevent the display doing redundant turning off/on stuff when launching
camera.

Bug: 195788686
Bug: 251700246
Test: double tap power to trigger camera
Change-Id: I99355b870d0c13335d719364a45f66cba31abb86
(cherry picked from commit 02610078)
Merged-In: I99355b870d0c13335d719364a45f66cba31abb86
Merged-In: I4533e0eecdc31861263e27af164b0a04b926e252