Only reset throttling when carrier config is on

The data retry/throttling was reset when TAC changes. This
should only happen when carrier config
unthrottle_data_retry_when_tac_changes_bool is on.

Fix: 229273271
Test: Manual + atest DataRetryManagerTest
Change-Id: Ie884e0faa71cf9f3e125a572e67e3003c750a47b