Regression

SGSN_Tests_Iu.TC_iu_attach_encr (from Titan)

Failing for the past 1 build (Since #2319 )

"VTY Timeout for prompt: enable"
      SGSN_Tests_Iu.ttcn:112 SGSN_Tests_Iu control part
      SGSN_Tests_Iu.ttcn:54 TC_iu_attach_encr testcase