Merge "Move offload start related flags from BTA_AV_SCB to BTA_AV_CB" am:...

Merge "Move offload start related flags from BTA_AV_SCB to BTA_AV_CB" am: 73507f7efd am: 77c4a09e70 am: 98476f1cfa

Original change: https://android-review.googlesource.com/c/platform/system/bt/+/1864493

Change-Id: Id9fc670a79cf4a674ef104de8e7ad0a7676964ef
(cherry picked from commit 0fa11a3f9efc307a5dffb1f0d693f555eac6aba8)