Revert "Use canonical path for /vendor/app"

This reverts commit e392417ab122ee5078d9da3db45704f1082ec7a0.
Revert "BootMessage: show more info in boot dialog"

This reverts commit d827dc1e69209d41c376a7c3411e025163c112d2.
[1/2] Speed up booting on multicore devices.

1. Add multithreading support to Installer/installd.
2. Parallelize package scanning.
3. Parallelize boot dexopt.

Change-Id: Id42b2bf4a737f93f9ecd9b5819344adbb735f0fb

Conflicts:

	services/java/com/android/server/pm/PackageManagerService.java