[Settings] Pass lock type extra back to SUW

When SetupChooseLockGeneric finishes, it will include the lock type
(password quality) as an extra in the returned intent data. This extra
will be used by Setup Wizard to determine the lock type and log it for
the metrics.

Bug: 20349248
Change-Id: I501e07254ab857ad4f137e7050326415853883d1
1 file changed