pcu: Improve logging and gsmtap

Change-Id: I506a39b114eed55a185d329cea5e9d6ba379a2ae
diff --git a/src/osmo_gsm_tester/templates/osmo-bts-virtual.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-bts-virtual.cfg.tmpl
index cb2e1ec..2276c86 100644
--- a/src/osmo_gsm_tester/templates/osmo-bts-virtual.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-bts-virtual.cfg.tmpl
@@ -35,9 +35,9 @@
  gsmtap-sapi sdcch
  gsmtap-sapi tch/f
  gsmtap-sapi tch/h
- gsmtap-sapi pacch
- gsmtap-sapi pdtch
- gsmtap-sapi ptcch
+ !gsmtap-sapi pacch
+ !gsmtap-sapi pdtch
+ !gsmtap-sapi ptcch
  gsmtap-sapi cbch
  gsmtap-sapi sacch
  trx 0