migrate roaming operator configs to carrier config

Bug:37885668
Test:runtest --path
packages/apps/CarrierConfig/tests/src/com/android/carrierconfig/CarrierConfigTest.java
Change-Id: Iddb261ac143c4977f8fec2e3c7d68461e831561e
diff --git a/assets/carrier_config_302720.xml b/assets/carrier_config_302720.xml
index 0f16772..a97c049 100644
--- a/assets/carrier_config_302720.xml
+++ b/assets/carrier_config_302720.xml
@@ -11,5 +11,12 @@
         <string-array name="read_only_apn_types_string_array" num="1">
             <item value="*" />
         </string-array>
+        <string-array name="non_roaming_operator_string_array" num="5">
+            <item value="302220" />
+            <item value="302370" />
+            <item value="302610" />
+            <item value="302660" />
+            <item value="302780" />
+        </string-array>
     </carrier_config>
 </carrier_config_list>