si: Share the ARFCN selection condition between the two statements

This makes reading the condition more easy and allows me to fix it
for GSM1900 more easily and I can remove one level of indention.
1 file changed
tree: eec244268722ea623bfc794e34bd9596399c91ad
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README