Multi-user support for phones [2/2]

Allow multi-user for all devices without hardcoding it on

based on this commit
https://github.com/VanirAOSP/packages_apps_Settings/commit/5b2ba371217ec0ce30db742f85076a62c041b8d0

Signed-off-by: hany <hany.alsamman@gmail.com>

Conflicts:
	res/values/probam_strings.xml
	src/com/android/settings/SecuritySettings.java