TC_err_rep_wrong_mdisc BTS_Tests

Regression

Failing for the past 1 build since #2707

Took 6.5 sec (from Titan)

Stack Trace

"BTS_Tests.ttcn:5037 : Timeout waiting for RSL ERR REP"
      BTS_Tests.ttcn:9566 BTS_Tests control part
      BTS_Tests.ttcn:5088 TC_err_rep_wrong_mdisc testcase