Rename test module to testenv and update references

Preparation to move current Test class into its own module test from
suite module.

Change-Id: I520bd046cb09042b5567d967f951f050e4e02e85
diff --git a/suites/smpp/esme_connect_policy_acceptall.py b/suites/smpp/esme_connect_policy_acceptall.py
index d22703d..904226b 100755
--- a/suites/smpp/esme_connect_policy_acceptall.py
+++ b/suites/smpp/esme_connect_policy_acceptall.py
@@ -4,7 +4,7 @@
 # * SMPP interface of SMSC accepts SMPP clients (ESMEs) which do not appear on
 #   the config file
 
-from osmo_gsm_tester.test import *
+from osmo_gsm_tester.testenv import *
 
 nitb = suite.nitb()
 smsc = nitb.smsc