Ensure camera launch notif alpha is correct

The camera gesture begins to turn the phone off, but the
2nd button press is recognized as the camera gesture, which
then immediately wakes the device back up. This is recognized
as a GONE->AOD(canceled)->GONE transition. Make sure this
is captured correctly

Test: atest FromAodTransitionInteractorTest
Fixes: 337632914
Flag: ACONFIG com.android.systemui.migrate_clocks_to_blueprint
TEAMFOOD

Change-Id: I6a6bb5fda79566a09f85fc0fd002a65e33a445c3