TC_pcu_ext_rach_content BTS_Tests

Regression

Failing for the past 1 build since #28

Took 3.1 sec (from Titan)

Stack Trace

"BTS_Tests.ttcn:5964 : Timeout waiting for RACH IND"
      BTS_Tests.ttcn:9521 BTS_Tests control part
      BTS_Tests.ttcn:5964 TC_pcu_ext_rach_content testcase