ttcn3-epdg-test: Update config file to set up GTPv2C socketDepends: osmo-epdg.git I6f00b7fce2d5fcdc484bfd45629b9141f16bc579Depends: osmo-ttcn3-hacks.git I8f18c927b1897806233cc9d049c25694c1e639d4Change-Id: I05ae2d87e16cef9772bc5c3690f687e5ecbd5f51