BTS_Tests: call f_pcu_data_req with correct timeslot

We are calling f_pcu_data_req() with SAPI PCU_IF_SAPI_AGCH or SAPI
PCU_IF_SAPI_PCH and use ts_nr 7.

In this particular case, the parameter ts_nr has no effect (see pcu_sock.c in
osmo-bts.git). However, to prevent confusion, lets use ts_nr 0 since AGCH and
PCH are actually is on TS 0 (on TRX 0).

Related: OS#5927
Change-Id: I20566de992809d6c857c9062bf0fb799efa43e45
1 file changed