Yukawa: refine audio_policy_configuration.xml

1. removed uncesssary gain settings
2. added missing Telephony Rx for earpiece

Change-Id: Icb6cc6ff0eb3049f9067aefb0fd003475daad795
diff --git a/audio/audio_policy_configuration.xml b/audio/audio_policy_configuration.xml
index 379f7e5..3a833c4 100644
--- a/audio/audio_policy_configuration.xml
+++ b/audio/audio_policy_configuration.xml
@@ -96,13 +96,6 @@
                 <devicePort tagName="Speaker" role="sink" type="AUDIO_DEVICE_OUT_SPEAKER" address="">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
-                    <gains>
-                        <gain name="gain_1" mode="AUDIO_GAIN_MODE_JOINT"
-                              minValueMB="-8400"
-                              maxValueMB="4000"
-                              defaultValueMB="0"
-                              stepValueMB="100"/>
-                    </gains>
                 </devicePort>
                 <devicePort tagName="Wired Headset" type="AUDIO_DEVICE_OUT_WIRED_HEADSET" role="sink">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
@@ -156,7 +149,7 @@
             <!-- route declaration, i.e. list all available sources for a given sink -->
             <routes>
                 <route type="mix" sink="Earpiece"
-                       sources="primary output,deep_buffer,BT SCO Headset Mic"/>
+                       sources="primary output,deep_buffer,BT SCO Headset Mic,Telephony Rx"/>
                 <route type="mix" sink="Speaker"
                        sources="primary output,deep_buffer,compressed_offload,BT SCO Headset Mic,Telephony Rx"/>
                 <route type="mix" sink="Wired Headset"