[S] Change in osmo-ttcn3-hacks[master]: sccp: use osmo-dev to build sccp_demo_user

Attention is currently required from: osmith.

pespin has posted comments on this change by osmith. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/43776?usp=email )

Change subject: sccp: use osmo-dev to build sccp_demo_user ......................................................................

Patch Set 3:

(1 comment)

Patchset:

PS3: just to make sure: when running -testing, we really want to test the latest tag of this instead of master, because sccp_demo_user is just a shim on top of libosmo-sigtran, and we want to test the related version of libosmo-sigtran.