BTS_Tests.cfg.tmpl: rename BTS_Tests.mp_bb_trxc_port

The module parameter BTS_Tests.mp_bb_trxc_port got renamed to
BTS_Tests.mp_bts_trxc_port. Lets change the config template accordingly.

Change-Id: I776a27642a5024919fe9f882a3d695246a8ce0f7
Related: OS#3863
diff --git a/ttcn3/suites/ttcn3_bts_tests/scripts/BTS_Tests.cfg.tmpl b/ttcn3/suites/ttcn3_bts_tests/scripts/BTS_Tests.cfg.tmpl
index 03d2721..cb25794 100644
--- a/ttcn3/suites/ttcn3_bts_tests/scripts/BTS_Tests.cfg.tmpl
+++ b/ttcn3/suites/ttcn3_bts_tests/scripts/BTS_Tests.cfg.tmpl
@@ -15,7 +15,7 @@
 %else:
 BTS_Tests.mp_pcu_socket := ""
 %endif
-BTS_Tests.mp_bb_trxc_port := -1
+BTS_Tests.mp_bts_trxc_port := -1
 L1CTL_PortType.m_l1ctl_sock_path := "/data/unix_l2/osmocom_l2"
 BTS_Tests.mp_ctrl_ip   := "${btsvty_ctrl_hostname}"
 BTS_Tests.mp_rxlev_exp := 1