[sample] change apns-full-conf.xml

b/7586192 [Russia APN] Update some data of APN profile
- Update MTS Russia (250-01)
- Update Megafon Russia (250-02)
- Update Beeline Russia (250-99)

b/7530580 [APN] Wrong MMSC for Kazakhstan TELE2
- Update Tele2 Kazakhstan (401-77)

b/7586012 [Add APN] Add APN for Kazakhstan DOS operator
- Add DOS Kazakhstan (401-01)

Change-Id: Icccf709f113e67844798e50455e6e8a3b92a6c22