BSC_Test_ASCI: Add race condition test, if MSC acknowledges talker

The existing tests (talker fails, talker establishes, talker releases)
delay, so the MSC acknowledges the UPLINK REQUEST first. It is expected
that the events of the talker (failure, establishment, release) are
forwarded to the MSC after the acknowledgement.

New tests are added, so that the MSC acknowledges the UPLINK REQUEST
late. It is expected that the events of the talker are not forwarded
before the MSC acknowledges.

The BSC (under test) must queue the events of the talker before the MSC
has acknowledged the UPLINK REQUEST.

Change-Id: I28081e62287bdc17a3b477d9368f977aedce01c8
2 files changed