TC_deact_sacch BTS_Tests

Failing for the past 2 builds since #623

Took 1 min 29 sec (from Titan)

Stack Trace

"BTS_Tests.ttcn:784 : Timeout expecting RF CHAN REL"
      BTS_Tests.ttcn:9412 BTS_Tests control part
      BTS_Tests.ttcn:1210 TC_deact_sacch testcase