Merge "floss: metrics: start sending A2DP session metrics" into main am: 86d04f87

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2871420



Change-Id: I434f7be4707c883a70e26f631e6bc2e88f95b94e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>