gsm_04_11: use 'unsigned int sms_alphabet' to include 0xffffffff

Detected by Smatch
1 file changed
tree: d69ca64079c70fdc21ec96493db9a373c0bdfeb4
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/
  5. README