audio policy: fix VoIP audio switching from BT SCO to earpiece am: 97cec6f8

                availableOutputDevices = availPrimaryOutputDevices;

            }

        }

        // Do not use A2DP devices when in call but use them when not in call

        // (e.g for voice mail playback)

        if (isInCall()) {

            availableOutputDevices.remove(availableOutputDevices.getDevicesFromTypes({

                    AUDIO_DEVICE_OUT_BLUETOOTH_A2DP, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES,

                    AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER, }));