exynos: audiohal: Don't skip route for usb headset

Change-Id: I074fb6a2171ab97f86f39a4145c4b152dea11514
diff --git a/libaudio/audiohal/audio_hw.c b/libaudio/audiohal/audio_hw.c
index c4185ae..7a9f786 100644
--- a/libaudio/audiohal/audio_hw.c
+++ b/libaudio/audiohal/audio_hw.c
@@ -1078,7 +1078,7 @@
             ** without any relation to audio path routing. So, keep previous path.
             */
             if (new_playback_ausage == AUSAGE_MEDIA &&
-               (new_playback_device == DEVICE_AUX_DIGITAL || new_playback_device == DEVICE_USB_HEADSET)) {
+               (new_playback_device == DEVICE_AUX_DIGITAL)) {
                 ALOGI("%s-%s: keep current route for device(%s) and usage(%s)",
                               stream_table[out->common.stream_type], __func__,
                               device_table[adev->active_playback_device],