BSC_Tests: add TC_chan_alloc_algo_ass_dynamic

This test case verifies the new channel allocation mode, which
is expected to switch between ascending and descending modes
dynamically based on the following two configurable parameters:

* Uplink RxLev threshold (and min number of samples),
* C0 (BCCH carrier) channel load threshold.

The test case scenario includes:

Case a) Unknown Uplink RxLev => fall-back to ascending.
Case b) Not enough RxLev samples => use ascending.
Case c) Uplink RxLev below the threshold => use ascending.
Case d) Uplink RxLev above the threshold => use descending.
Case e) Uplink RxLev above the threshold, but C0 load is not.

Change-Id: Ia522f37c1c001b3a36f5145b8875fbb88311c2e5
Related: SYS#5460
2 files changed