bsc: add RSL, RSL_PROC port args in various places

To be able to run tests on a cell other than bts 0, there needs to be a
way to select the RSL_DCHAN_PT and RSLEM_PROC_PT in various places.

Upcoming BSC_Tests.TC_cm_reestablishment depends on this, to be able to
run through an Assignment on bts 1.

Related: SYS#5130
Change-Id: Ia14f46d4e5e8d4722224b97c346c0cb7973fff97
1 file changed