bluetooth.audio pass both source and sink metadata

Currently just source metadata is passed through the new aidl.

Test: m android.hardware.bluetooth.audio-update-api
Bug: 203490261
Bug: 150670922
Change-Id: I76a44bb8c5cb0b6c16845aca36ba93517ecd07b4
Merged-In: I76a44bb8c5cb0b6c16845aca36ba93517ecd07b4
2 files changed