leaudio: Set and use preferred config

This patch is to implement `SetCodecConfigPreference`. Also when getting
active configuration, check if preferred config is used first.

Bug: 259191520
Bug: 353909820
Bug: 351229684
Test: mm packages/modules/Bluetooth
Test set preferred config with remote devices having different
strategies, later join, reconnection. Check if reconfiguration happen
during streaming if preferred config is adopted
Test: check set codec preference works in both legacy and multi codec.
Test: atest bluetooth_le_audio_test bluetooth_le_audio_client_test
Flag: com.android.bluetooth.flags.leaudio_set_codec_config_preference
Change-Id: I94621b18a3236bb010bcf74817daca5febea4fca