base

Broadcast USER_INITIALIZE after user is unlocked

Previously USER_INITIALIZE was sent before USER_UNLOCKED. This was leaving
BOOT_COMPLETED as the only option for non-directBootAware apps to do one time
initialization.

Now USER_INITIALIZE is sent immediately after the user is unlocked.

Bug: 28278011
Change-Id: Id82eae91af80a66454d4027050120ae841decfeb