osmo-nitb: change default db name to sms.db

libvlr now delegates subscriber management to osmo-hlr, so the database no
longer represents a HLR. It basically only stores SMS, so reflect that fact in
the default database name.

Change-Id: I3289d68d3eb63aff940b48a25b584d5e83cd0197
diff --git a/tests/Makefile.am b/tests/Makefile.am
index b36844a..38890a8 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -87,7 +87,7 @@
 if BUILD_SMPP
 	$(PYTHON) $(srcdir)/smpp_test_runner.py -w $(abs_top_builddir) -v
 endif
-	rm -f $(top_builddir)/hlr.sqlite3 $(top_builddir)/gsn_restart $(top_builddir)/gtphub_restart_count
+	rm -f $(top_builddir)/sms.db $(top_builddir)/gsn_restart $(top_builddir)/gtphub_restart_count
 else
 python-tests: $(BUILT_SOURCES)
 	echo "Not running python-based tests (determined at configure-time)"