Added additional cell broadcast channels for Softbank

Softbank uses those channels in parallel with their existing
ETWS channels for earthquakes, tsunami, and other emergency
scenarios.

bug: 21107166
Change-Id: I3910af194a766428788125e99e223c79c8f58f5b
diff --git a/assets/carrier_config_44020.xml b/assets/carrier_config_44020.xml
index 4d787a6..e882afd 100644
--- a/assets/carrier_config_44020.xml
+++ b/assets/carrier_config_44020.xml
@@ -12,5 +12,10 @@
 <int name="volte_replacement_rat_int" value="3" />
 <int name="ims_dtmf_tone_delay_int" value="215" />
 <boolean name="always_show_emergency_alert_onoff_bool" value="true" />
+<string-array name="carrier_additional_cbs_channels_strings" num="3">
+    <item value="0xA800:type=earthquake" />
+    <item value="0xAFEE:type=tsunami" />
+    <item value="0xAC00-0xAFED:type=other" />
+</string-array>
 </carrier_config>
 </carrier_config_list>