Fix tuning race condition in broadcast radio VTS am: 9bf75a3334 am: e20b08eead

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3412401

Change-Id: I23a4b788d0269a9081f6646cf358f7a52c5e20d9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>