Regression

SGSN_Tests.TC_attach_usim_a53_a54 (from Titan)

Failing for the past 1 build (Since #2319 )

"VTY Timeout for prompt: enable"
      SGSN_Tests.ttcn:3761 SGSN_Tests control part
      SGSN_Tests.ttcn:3050 TC_attach_usim_a53_a54 testcase