abis_nm: Consider a STATE CHG without avail_status as an empty avail_status

At least some nanoBTS 139 send the last even (going online) as
'enabled' 'unlocked' but no avail status IE (which I guess mean an empty
set, the doc 12.21 isn't that clear about that).

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
1 file changed
tree: fbdd051ea308e13e95bcd13263894023e982b29d
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. rrlp-ephemeris/
  5. wireshark/