BluetoothAudio: Refine the FMQ size for A2DP software encoding am: a0cc24730e am: 96f6682952 am: e07d015249

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1782007

Change-Id: I3e06379c043f5e3d88a7e1796630480a0bfcbd0f