SamsungRIL: Don't switch off data connection when changing network type

Change-Id: I9d32d5f17d1e33515c7d27330688e7a9c54998de
Disable getNeighboringCids as ril doesn't support it!

Change-Id: Idda67afb2e6dfcbb15089e02409a7f9a4f3dab52