Adding Softbank APN for SIM unlocked device for jb-mr1-dev

Merging JB MR 1.1 change to JB MR2 and master

bug id: b/8197746

Change-Id: I69b6a913af3e5452558ede8919ecfa1baa9a76a7
diff --git a/etc/apns-full-conf.xml b/etc/apns-full-conf.xml
index 080e735..d175bc0 100755
--- a/etc/apns-full-conf.xml
+++ b/etc/apns-full-conf.xml
@@ -12432,6 +12432,16 @@
       mmsc=""
   />
 
+  <apn carrier="plus.softbank"
+      mcc="440"
+      mnc="20"
+      apn="plus.softbank"
+      user="plus"
+      server=""
+      password="softbank"
+      mmsc=""
+  />
+
   <apn carrier="SK Telecom"
       mcc="450"
       mnc="05"