apn: Update BT OnePhone UK

mcc: 234
mnc: 08,30,33 (gid=B2,B3,C3)
mnc: remove deprecated 15

* Take FP4 and EE/BT requirements as baseline; align protocols with
  requirements.
* Add 'ia' type APN as per AOSP.
* Leave out 'spn' and network bitmasks for now.

Issue: FP3-A11#405
Change-Id: I3c9822a39290ab5275d1e1f27ea7f0913b6f379c
1 file changed