[automerger skipped] [DO NOT MERGE]Move offload start related flags from...

[automerger skipped] [DO NOT MERGE]Move offload start related flags from BTA_AV_SCB to am: fa67c2de -s ours am: 7c193ef9 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/bt/+/16187625

Change-Id: I6f2316679c272720e159621e45ce1c61b7b5f6b1