broadcast_audio_scan_service_client_init() function
Init Broadcast Audio Scan Service Client. Register packet handler to receive events: - GATTSERVICE_SUBEVENT_BASS_CLIENT_CONNECTED - GATTSERVICE_SUBEVENT_BASS_CLIENT_DISCONNECTED - GATTSERVICE_SUBEVENT_BASS_CLIENT_SCAN_OPERATION_COMPLETE - GATTSERVICE_SUBEVENT_BASS_CLIENT_SOURCE_OPERATION_COMPLETE - GATTSERVICE_SUBEVENT_BASS_CLIENT_NOTIFICATION_COMPLETE