Changes

tests/vty: Run ss7_asp_test.vty

Old commit enabled running vty tests for libosmo-sigtran in SG mode, but
prevented running the existing ones in ASP mode. Re-enable them (and
update the vty output to up to date expectations).

Fixes: d3e69b874971441071663a2457773dac77b579ae
Change-Id: Ibcb0c589e6bdf692fa82361deedeb82169c09270