PackageManager: allow build-time disabling of components

Allow components to be specified as disabled at build time
(applied on boot).

This allows stock OTA components to be marked as disabled in
Slim builds.

Change-Id: I6e4499cc40a779792a5ea97a10137399dad7d69f
Cmon now
Privacy Guard Slim version (1/2)

Re-implements slims ehanced privacy guard from 4.3
and addapt it to 4.4 changes

Change-Id: If57de2b541fa6b0a590fd65e8664bf173e259035

Conflicts:
	core/res/res/values/broken_symbols.xml