Add implicit grants to NLSes

So they can query packages they are receiving notifications
from without needing to hold QUERY_ALL_PACKAGES.

Test: NotificationListenersTest, manual with test app
Fixes: 184736797
Change-Id: I8071d5a03515cc05cbd3f8598997e6236d306052
Merged-In: I8071d5a03515cc05cbd3f8598997e6236d306052