post_proc: include USB headset for BassBoost effect

* Since 2017, some devices have lost the 3.5 jack and only have a
  USB_HEADSET input for headphones. Add USB headset as supported device for
  BassBoost effect.

Change-Id: I21345253817371581cb51beae27d0bbbff02ea19
diff --git a/post_proc/bass_boost.c b/post_proc/bass_boost.c
index 1ce1c21..132fe08 100644
--- a/post_proc/bass_boost.c
+++ b/post_proc/bass_boost.c
@@ -203,6 +203,7 @@
         ALOGV("%s: set PBE mode, device: %x", __func__, device);
     } else if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET ||
         device == AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+        device == AUDIO_DEVICE_OUT_USB_HEADSET ||
         device == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP ||
         device == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES) {
         ALOGV("%s: set BB mode, device: %x", __func__, device);
@@ -346,6 +347,7 @@
     bass_ctxt->device = device;
     if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET ||
         device == AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+        device == AUDIO_DEVICE_OUT_USB_HEADSET ||
         device == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP ||
         device == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES) {
         if (bass_ctxt->temp_disabled) {