Eagerly dismiss Keyguard when launching notifications and phone

Uses the new code path when launching phone that delays the launch
until the Keyguard is actually dismissed, which fixes another way
for 14622312 to pop up. Also adds a flag to prevent the Keyguard
from waiting for the launch animation to finish.

Bug: 15280103
Bug: 14622312

Change-Id: Id24e40785c9f760648140e5572b1d39889d3666b