* remove checks for non-existent tests
* always enable bsc and nat-trie tests because both are built
unconditionally
* enable gsm0408 test which was removed by mistake
* adjust gsm0408 test output to remove SMS-related results
Change-Id: I73ad079a6333ba56e73b7c4d1d0e9c8255c2a03b
Related: OS#2257
This is the first step in creating this repository from the legacy openbsc.git.
Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.
Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7