Multi-user support for phones

Allow multi-user support on devices that previously didn't have it without
hard-coding it on.

ps2: Give it the nuclear touch.
ps3: Correct initialization.

Change-Id: I376f3f51ee1d8843d0977384101f93e23e278c97

Conflicts:
	core/java/android/provider/Settings.java

Conflicts:
	core/java/android/provider/Settings.java