audio: Add device constants for HDMI EARC

Implementation check by grep -E -r  "HDMI_ARC|HDMI_EARC" .

Test: atest AudioDeviceInfoTest
Bug: 131385398
Bug: 151781316
Change-Id: Idfe27b468a9f09770a31b6b58d83de77bebc6c80
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
index a06e027..77cff91 100644
--- a/audio/7.0/config/audio_policy_configuration.xsd
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -253,6 +253,7 @@
             <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_EARC"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET"/>
@@ -304,6 +305,7 @@
             <xs:enumeration value="AUDIO_DEVICE_IN_USB_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_BLE"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_ARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_EARC"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BLE_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>