APN: add Sprint MVNO Ringplus, Ting update

Added Sprint's MVNO ringplus.  it was added in e1d6d09de7cf0b82ef94f13ac9d185ea1fc8a2e0
but removed later in e980819a9c6bb404a7a24772687e88065f434020/b28ca702333739b132b51926eff7b2ec6d2fa2fd
for an unknown reason.
Also, Ting (another Sprint MVNO) was updated so that it shows as active when revisting
the "Access Point Names" menu.

Change-Id: I4f8fc540235a8f8ad0df8656de0ffdbde2b83852
diff --git a/prebuilt/common/etc/apns-conf.xml b/prebuilt/common/etc/apns-conf.xml
index 36050e8..62abfa6 100644
--- a/prebuilt/common/etc/apns-conf.xml
+++ b/prebuilt/common/etc/apns-conf.xml
@@ -1469,7 +1469,8 @@
   <apn carrier="Sprint internet" mcc="310" mnc="120" apn="n.ispsn" type="mms,supl,hipri" mmsc="http://mms.sprintpcs.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
   <apn carrier="Boost" mcc="310" mnc="120" apn="cinet.spcs" type="supl,mms,dun,fota" mmsc="http://mm.myboostmobile.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
   <apn carrier="Credo Mobile" mcc="310" mnc="120" apn="n.w1.ispsn" type="mms" mmsc="http://mms.plspictures.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
-  <apn carrier="Ting" mcc="310" mnc="120" apn="n.t8.ispsn" type="mms" mmsc="http://mms.plspictures.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
+  <apn carrier="Ting" mcc="310" mnc="120" apn="n.t8.ispsn" type="supl,mms" mmsc="http://mms.plspictures.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
+  <apn carrier="Ringplus" mcc="310" mnc="120" apn="n.r5.ispsn" type="supl,mms" mmsc="http://mms.plspictures.com" mmsproxy="68.28.31.7" mmsport="80" protocol="IPV4V6" roaming_protocol="IPV4V6" />
   <apn carrier="Virgin Mobile" mcc="310" mnc="120" apn="n.vmu.ispsn" user="Sprint" password="*" mmsproxy="68.28.31.7" mmsport="80" mmsc="http://mmsc.vmobl.com:8088/mms?" type="supl,mms,fota,dun" />
   <apn carrier="FreedomPop LTE" mcc="310" mnc="120" apn="n.f6.ispsn" mmsproxy="68.28.31.7" mmsport="80" mmsc="http://mms.sprintpcs.com" type="supl,mms" bearer="14" />
   <apn carrier="FreedomPop EHRPD" mcc="310" mnc="120" apn="n.f6.ispsn" mmsproxy="68.28.31.7" mmsport="80" mmsc="http://mms.sprintpcs.com" type="supl,mms" bearer="13" />