BTS_Tests: turn 'l1ctl_ma_def' into 'c_arfcn_list'

It will be easier to use this list / array in non-L1CTL specific
records and templates, e.g. in (RR) Immediate Assignment.

Change-Id: I392299eea9a82168f893a72d06872c280b6fbdce
1 file changed