Changed ApnThrottleStatus to ThrottleStatus

* Changed verbiage to be more generic at request of the API council

Bug: 175092152
Test: make & flash
Merged-In: I8bec64b0c38be94bcd3f3b99bcebfb378384c970
Change-Id: I8bec64b0c38be94bcd3f3b99bcebfb378384c970
5 files changed