Update Cellcom Israel

Per request from carrier

Change-Id: Ia9cc09d33fca828108b6cd170237880471f771bb
diff --git a/prebuilt/common/etc/apns-conf.xml b/prebuilt/common/etc/apns-conf.xml
index 0a9bd4d..8e3c265 100644
--- a/prebuilt/common/etc/apns-conf.xml
+++ b/prebuilt/common/etc/apns-conf.xml
@@ -1350,7 +1350,7 @@
   <apn carrier="3G Portal" mcc="425" mnc="01" apn="uwap.orange.co.il" port="8080" type="default,supl" />
   <apn carrier="MMS 3G" mcc="425" mnc="01" apn="uwap.orange.co.il" mmsc="http://192.168.220.15/servlets/mms" mmsport="8080" type="mms" />
   <apn carrier="Internet 3G" mcc="425" mnc="01" apn="modem.orange.net.il" type="default,supl" />
-  <apn carrier="CellCOM" mcc="425" mnc="02" apn="internetg" type="default,supl" />
+  <apn carrier="CellCOM" mcc="425" mnc="02" apn="sphone" type="default,supl" />
   <apn carrier="CellCOM MMS" mcc="425" mnc="02" apn="mms" user="" password="" mmsc="http://mms.cellcom.co.il" mmsproxy="172.31.29.38" mmsport="8080" type="mms" />
   <apn carrier="Pelephone" mcc="425" mnc="03" apn="internet.pelephone.net.il" user="pcl@3g" password="pcl" type="default,supl" />
   <apn carrier="Pelephone MMS" mcc="425" mnc="03" apn="mms.pelephone.net.il" user="pcl@3g" password="pcl" server="pelephone" mmsc="http://mmsu.pelephone.net.il" mmsproxy="10.170.9.54" mmsport="9093" type="mms" />