Yukawa: Fix invalid source name in audio_policy_configuration.xml

Bug: b/144125253
Test: Manual, verified no error seen on log, audio capture and playback work.
Change-Id: I56add2cd91273209230cce1aab3120e3444ff081
diff --git a/audio/audio_policy_configuration.xml b/audio/audio_policy_configuration.xml
index 646fae1..6c696cb 100644
--- a/audio/audio_policy_configuration.xml
+++ b/audio/audio_policy_configuration.xml
@@ -159,7 +159,7 @@
                 <route type="mix" sink="primary input"
                        sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic"/>
                 <route type="mix" sink="Telephony Tx"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic, voice_tx"/>
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,voice_tx"/>
                 <route type="mix" sink="voice_rx"
                        sources="Telephony Rx"/>
             </routes>