Call systemReady on the lock settings before doing so on the window manager

At systemReady time, the window manager needs to obtain values from the lock
settings service (e.g. whether the lock screen is disabled).  During the
initial boot of a wiped device, the window manager was getting the wrong
values because LockSettingsService.systemReady/migrateOldData had not yet been
called.

Change-Id: I60825d0e4fad53a5b4349dabf9e5e299b863d0d0

(cherry pick of 2458abaf6676d5015af733c1010ecd67a085e9e2 from jb-aah-dev)