Add helper API to hide subscriptions when getting active subscriptions

Adding a hidden API that only return user visible active subscriptions.

Bug: 121396526
Test: manual
Change-Id: Ib69f1c2c51d22c2a58cfa93c662dc65521f7874f
Merged-In: Ib69f1c2c51d22c2a58cfa93c662dc65521f7874f
1 file changed