bsc: Allow setting expected ms max power level with module param

It will allow changing ms max power in osmo-bsc.cfg as well as TTCN3
expactancies in BSC_Tests.cfg easily in docker-playground.git without
needing to recompile or change code in TTCN3.

Change-Id: Ib00c96902377582bc32778c5b947a6b4274041aa
1 file changed