gbproxy: Fix radio status routing by TMSI

If a radio status message contains a TMSI it should be routed as if it
was a TLLI. Convert the TMSI to (foreign) TLLI so NRI-routing works.

Both foreign and local TLLIs are routed the same.

Fixes: OS#4954
Change-Id: Ifd64f02fa16b44f8e2e19eb8ba973f50a829ead5
1 file changed