factory: add usb_headset_mic support for MFG_API

Bug: 214585271
Test: manual

Signed-off-by: Yung Ti Su <andysu@google.com>
Change-Id: Ieba43e651dbc06778849a03768d256f75a10ebef

audio/lynx/config/mixer_paths_factory.xml

@@ -273,6 +273,13 @@
         <ctl name="USB_RX Mixer EP3" value="1" />
     </path>
 
+    <path name="mfg-record usb-headset-mic">
+        <ctl name="Audio Capture Mic Source" value="USB_MIC"/>
+        <ctl name="USB Capture FORMAT v2" value="1" />
+        <ctl name="USB Config To AoC v2" value="1"/>
+        <ctl name="EP1 TX Mixer USB_TX" value="1"/>
+    </path>
+
     <path name="us-mfg-playback speaker">
         <ctl name="TDM_0_RX Sample Rate" value="SR_96K" />
         <ctl name="TDM_0_TX Sample Rate" value="SR_96K" />