[Audiosharing] Enable audio sharing UI when preview option on.

Test: atest
Bug: 368401233
Flag: com.android.settingslib.flags.audio_sharing_developer_option
Change-Id: Idbc84e2c43f7361c58c440d1a7d7c78edd3c0521

src/com/android/settings/connecteddevice/audiosharing/AudioSharingDevicePreferenceController.java

@@ -308,7 +308,8 @@ public class AudioSharingDevicePreferenceController extends BasePreferenceContro
 
     @Override
     public int getAvailabilityStatus() {
-        return BluetoothUtils.isAudioSharingEnabled() && mBluetoothDeviceUpdater != null
+        return (BluetoothUtils.isAudioSharingUIAvailable(mContext)
+                && mBluetoothDeviceUpdater != null)
                 ? AVAILABLE_UNSEARCHABLE
                 : UNSUPPORTED_ON_DEVICE;
     }