Add hnbgw tests

Some tests for osmo-hnbgw with mgw support:
* hnb register
* ranap connect/disconnect
* rab assignment/release

Change-Id: I0a2fb795aec83337eda8d9972e6ff264ead61076
diff --git a/hnbgw/HNBGW_Tests.cfg b/hnbgw/HNBGW_Tests.cfg
new file mode 100644
index 0000000..8cf0048
--- /dev/null
+++ b/hnbgw/HNBGW_Tests.cfg
@@ -0,0 +1,18 @@
+[ORDERED_INCLUDE]
+# Common configuration, shared between test suites
+"../Common.cfg"
+# testsuite specific configuration, not expected to change
+"./HNBGW_Tests.default"
+
+# Local configuration below
+
+[LOGGING]
+
+[TESTPORT_PARAMETERS]
+
+[MODULE_PARAMETERS]
+
+[MAIN_CONTROLLER]
+
+[EXECUTE]
+HNBGW_Tests.control