Add emergency call service selector.

Change-Id: I85b8c0a6c6d2db668caaf27abe6b022e8e06cc8c
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 780906c..d58c898 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -161,5 +161,8 @@
             </intent-filter>
         </activity-alias>
 
+        <!-- Selects call services to place emergency calls. -->
+        <service android:name="EmergencyCallServiceSelector" android:exported="false" />
+
     </application>
 </manifest>