A2DP switch device refactor

Replace 3 hidden api by a common one.

Test: Manual
Tag: #refactor
Bug: 190422401
Merged-In: I21bd61187a8f2490c3345a61974e0a1f1563637f
Change-Id: I21bd61187a8f2490c3345a61974e0a1f1563637f
4 files changed