[DO NOT MERGE] Make sure smartspace connects when added

And disconnects when there's no views attached.

Fixes: 201564901
Fixes: 201546735
Test: atest LockscreenSmartspaceControllerTest
Change-Id: I66206b127114484b3c47abe98c6bd2ddafe99b61
(cherry picked from commit 5739b63774605545f8509872a861eafe9842b39b)
2 files changed