MTNL apn fix

MTNL uses 68 and 69 MNC respectively in Delhi and mumbai

forward port of this change
http://review.cyanogenmod.org/#/c/27022/

Signed-off-by: Arnav Gupta <championswimmer@gmail.com>
diff --git a/prebuilt/common/etc/apns-conf.xml b/prebuilt/common/etc/apns-conf.xml
index 5d40a9c..c4fe1e4 100644
--- a/prebuilt/common/etc/apns-conf.xml
+++ b/prebuilt/common/etc/apns-conf.xml
@@ -754,6 +754,8 @@
   <apn carrier="Reliance" mcc="404" mnc="67" apn="rcomnet" type="default,supl" />
   <apn carrier="MTNL" mcc="404" mnc="69" apn="mtnl.net" user="mtnl" password="mtnl123" proxy="10.10.10.10" port="9401" type="default,supl" />
   <apn carrier="MTNL MMS" mcc="404" mnc="69" apn="mtnl.net" user="mtnl" password="mtnl123" mmsc="http://mtnlmms/" mmsproxy="10.10.10.10" mmsport="9401" type="mms" />
+  <apn carrier="MTNL" mcc="404" mnc="68" apn="mtnl.net" user="mtnl" password="mtnl123" proxy="10.10.10.10" port="9401" type="default,supl" />
+  <apn carrier="MTNL MMS" mcc="404" mnc="68" apn="mtnl.net" user="mtnl" password="mtnl123" mmsc="http://mtnlmms/" mmsproxy="10.10.10.10" mmsport="9401" type="mms" />
   <apn carrier="Airtel" mcc="404" mnc="70" apn="airtelgprs.com" mmsc="http://100.1.201.171:10021/mmsc" mmsproxy="100.1.201.172" mmsport="8799" type="default,supl,mms" />
   <apn carrier="BSNL" mcc="404" mnc="71" apn="bsnlnet" user="MSISDN" password="MSISDN" type="default,supl" />
   <apn carrier="BSNL MMS" mcc="404" mnc="71" apn="mmssouth.cellone.in" user="MSISDN" password="mmsc" mmsc="http://10.7.236.11:8514" mmsproxy="10.7.236.11" mmsport="8080" type="mms" />