Fix crash after running broadcast radio VTS

Config broadcast radio VTS not to change framework status, such as
registering new tuner callback, to avoid radio service crash due to
no tuner callback registered after VTS completes.

Bug: 246866675
Test: atest VtsHalBroadcastradioAidlTargetTest
Change-Id: If8d1d26a860acdfc77eed5803926035224ad2d2a
1 file changed