apn: fix o2 cz internet access

Change-Id: Ib2153ee4f990b8e54a50d11c385de2ee5d5f83c0
diff --git a/prebuilt/etc/apns-conf.xml b/prebuilt/etc/apns-conf.xml
index c9ef8ae..c37aadc 100644
--- a/prebuilt/etc/apns-conf.xml
+++ b/prebuilt/etc/apns-conf.xml
@@ -3464,6 +3464,7 @@
   <apn carrier="O2 internet"
       mcc="230"
       mnc="02"
+      authtype="1"
       apn="internet"
       type="default,supl"
   />