Fix crash for DefaultSubscriptionController

setSummaryProvider() is used instead of setSummary() in
Ia24d88817c99db7ed3fc264dbc9c10e0a09d8a39, but there is still a place
using the setSummary(), mixing these two will lead to crash.

Change it to setSummaryProvider() to prevent crash.

Fix: 233295254
Fix: 233712251
Test: manual
Change-Id: I4627545711b848009c3bd7179f0368ff82e62697