tests: Replace 'suite' with 'tenv'

Change-Id: I777ec59ffd83b861ddc09e85e52d7a8896264b8c
diff --git a/sysmocom/suites/nitb_smpp/esme_connect_policy_acceptall.py b/sysmocom/suites/nitb_smpp/esme_connect_policy_acceptall.py
index 904226b..85abb9b 100755
--- a/sysmocom/suites/nitb_smpp/esme_connect_policy_acceptall.py
+++ b/sysmocom/suites/nitb_smpp/esme_connect_policy_acceptall.py
@@ -6,9 +6,9 @@
 
 from osmo_gsm_tester.testenv import *
 
-nitb = suite.nitb()
+nitb = tenv.nitb()
 smsc = nitb.smsc
-esme = suite.esme()
+esme = tenv.esme()
 
 # Here we deliberately omit calling smsc.esme_add() to avoid having it included
 # in the smsc config.