tests: Replace 'suite' with 'tenv'

Change-Id: I777ec59ffd83b861ddc09e85e52d7a8896264b8c
diff --git a/sysmocom/suites/sms/mo_mt_sms.py b/sysmocom/suites/sms/mo_mt_sms.py
index 7654ea6..51e78c0 100755
--- a/sysmocom/suites/sms/mo_mt_sms.py
+++ b/sysmocom/suites/sms/mo_mt_sms.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 from osmo_gsm_tester.testenv import *
 
-hlr = suite.hlr()
-bts = suite.bts()
-mgw_msc = suite.mgw()
-mgw_bsc = suite.mgw()
-stp = suite.stp()
-msc = suite.msc(hlr, mgw_msc, stp)
-bsc = suite.bsc(msc, mgw_bsc, stp)
-ms_mo = suite.modem()
-ms_mt = suite.modem()
+hlr = tenv.hlr()
+bts = tenv.bts()
+mgw_msc = tenv.mgw()
+mgw_bsc = tenv.mgw()
+stp = tenv.stp()
+msc = tenv.msc(hlr, mgw_msc, stp)
+bsc = tenv.bsc(msc, mgw_bsc, stp)
+ms_mo = tenv.modem()
+ms_mt = tenv.modem()
 
 hlr.start()
 stp.start()