Allocating a pseudo-TTY (-t, --tty) fails when 'run' is executed
inside of a Jenkins or cron script. This change fixes
ttcn3-bts-test, which invokes 'run' to fetch the config files.
Change-Id: If22f682be4f004c5bb43e65098079a4f4fe6158d
Fixes: If15461240f3037c142c176fc7da745a1701ae3f8
Since examples/sccp_demo_user (the binary used to test SCCP) is not
installed by libosmo-sccp.git during make install, we need to install it
manually after "make" step, and hence it's only available in
osmo-stp-master, because in osmo-stp-latest we used packaged files.
Related: OS#4343
Depends: osmo-ttcn3-hacks.git Ied9fbfb9bd35a99205ca13db033dd9ea03d51238
Change-Id: I5a7e6ff5f6e5f6e34d6a5ab29bd760a6f9d49c4b