Remove unnecessary hipri from Softbank apn

As commit 5ca7270b9b785b85699f12cd9f00d00ad096417f,
hipri is a synonym for default and used only at runtime
and is not needed in the apns-conf file.
And change authtype to 2 from 3.

Change-Id: I743f81dc1cfb81103090206a0e3da136e7169a23
diff --git a/etc/apns-full-conf.xml b/etc/apns-full-conf.xml
index ffbeabd..9f4decf 100644
--- a/etc/apns-full-conf.xml
+++ b/etc/apns-full-conf.xml
@@ -14048,8 +14048,8 @@
       mmsproxy="andmms.plusacs.ne.jp"
       mmsport="8080"
       mmsc="http://mms-s"
-      type="default,mms,supl,hipri"
-      authtype="3"
+      type="default,mms,supl"
+      authtype="2"
   />
 
   <apn carrier="SKT LTE INTERNET"