Regression

SGSN_Tests.TC_attach_usim_a50_a54 (from Titan)

Failing for the past 1 build (Since #39 )

"VTY Timeout for prompt: enable"
      SGSN_Tests.ttcn:3762 SGSN_Tests control part
      SGSN_Tests.ttcn:3060 TC_attach_usim_a50_a54 testcase