Integrate duplicated NTT DOCOMO carrier labels

Integrate two separate NTT DOCOMO carrier labels into a single label.

before: http://imgur.com/2D3qjd1
after: http://imgur.com/YJh0gxq

Change-Id: I87c3dcad947cda779b3b4a4b2ffdc2a6f63dbe5c
diff --git a/prebuilt/common/etc/spn-conf.xml b/prebuilt/common/etc/spn-conf.xml
index 82e16a0..3dc3934 100644
--- a/prebuilt/common/etc/spn-conf.xml
+++ b/prebuilt/common/etc/spn-conf.xml
@@ -2,6 +2,7 @@
 
 <spnOverrides>
   <!-- Japan -->
+  <spnOverride numeric="44010" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="44010"/>
   <spnOverride numeric="44020" spn="SoftBank" />
   <!-- Hong Kong -->
   <spnOverride numeric="45406" spn="SmarTone" />