sgsn: Add boilerplate code for a SGSN test
diff --git a/openbsc/.gitignore b/openbsc/.gitignore
index c9af26b..21b66a1 100644
--- a/openbsc/.gitignore
+++ b/openbsc/.gitignore
@@ -68,6 +68,7 @@
 tests/bsc/bsc_test
 tests/trau/trau_test
 tests/mgcp/mgcp_transcoding_test
+tests/sgsn/sgsn_test
 
 tests/atconfig
 tests/atlocal