Don't collapse the panel post launch if we went back to sleep.

This manages to call through to PowerManager#wakeUp. If you press the
power button to sleep the device during an app launch, this will then
wake up the device and show the bouncer, but in a weird state with no
scrim.

Bug: 220907477
Test: manual
Change-Id: I7470cfd69cc27458dfed3c5b68fc0c4ef69ae55d