sgsn: Give the IMEI to the GGSN for analysis

Most SGSNs pass the IMEI(SV). We currently only enquire about
the IMEI and then pad the 'SV' with 1111b (thanks to the encoding
routine). Sadly it insists on always writing the length which
means we have to memmove the data around by a single octet.

Manually verified using the pcu-emu and looking at the trace
using wireshark.
1 file changed
tree: 837a0cf2569737610245ba1f1a630b3957a73a5c
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. .gitignore
  7. README