fixup! audiohal: Remove case value not in enumerated type

Change-Id: Iaec178d93f4684deba9b7fa124d5112961f813a6
diff --git a/libaudio/audiohal/audio_hw.c b/libaudio/audiohal/audio_hw.c
index e7d1d53..a4e6e60 100644
--- a/libaudio/audiohal/audio_hw.c
+++ b/libaudio/audiohal/audio_hw.c
@@ -548,6 +548,7 @@
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
+                    ret = DEVICE_BT_HEADSET;
                     break;
                 case AUDIO_DEVICE_OUT_USB_DEVICE:
                 case AUDIO_DEVICE_OUT_USB_HEADSET: