Moved ERI configuration files from resoures to Carrier Config.

Used Carrier Config to load correct ERI configuration file since
there are MCC/MNC shared by different carriers.

bug: 23887558
Change-Id: I6431b76a79a59bf5d573231d8833fdb0befd1a70
diff --git a/assets/carrier_config_310004.xml b/assets/carrier_config_310004.xml
index fba514e..71a87fb 100644
--- a/assets/carrier_config_310004.xml
+++ b/assets/carrier_config_310004.xml
@@ -26,5 +26,6 @@
         <boolean name="enableMultipartSMS" value="true" />
         <boolean name="allow_adding_apns_bool" value="false" />
         <boolean name="broadcast_emergency_call_state_changes_bool" value="true" />
+        <string name="carrier_eri_file_name_string">eri_311480.xml</string>
     </carrier_config>
 </carrier_config_list>