apns-conf: Fix Elisa EE MMS port.

According to https://www.elisa.ee/et/Eraklient/Pood/setup/58

Change-Id: I2bd046646c98f04490ddfdb6be051ce50cf994e7

prebuilt/common/etc/apns-conf.xml

@@ -360,7 +360,7 @@
   <apn carrier="EMT" mcc="248" mnc="01" apn="internet.emt.ee" type="default,supl" />
   <apn carrier="EMT MMS" mcc="248" mnc="01" apn="mms.emt.ee" mmsc="http://mms.emt.ee/servlets/mms" mmsproxy="217.71.32.82" mmsport="8080" type="mms" />
   <apn carrier="Elisa EE" mcc="248" mnc="02" apn="internet" type="default,supl" />
-  <apn carrier="Elisa EE MMS" mcc="248" mnc="02" apn="mms" mmsc="http://194.204.2.10" mmsproxy="194.204.2.6" mmsport="8080" type="mms" />
+  <apn carrier="Elisa EE MMS" mcc="248" mnc="02" apn="mms" mmsc="http://194.204.2.10" mmsproxy="194.204.2.6" mmsport="8000" type="mms" />
   <apn carrier="Tele2 EE" mcc="248" mnc="03" apn="internet.tele2.ee" type="default,supl" />
   <apn carrier="Tele2 EE MMS" mcc="248" mnc="03" apn="mms.tele2.ee" mmsc="http://mmsc.tele2.ee" mmsproxy="193.12.40.6" mmsport="8080" type="mms" />
   <apn carrier="MTS RU" mcc="250" mnc="01" apn="internet.mts.ru" user="mts" password="mts" type="default,supl" />