db: Link to the VTY library for the vty_config_unlock symbol
Linking started to fail for me due the symbol coming from the
vty library and the db code not linking to it.
diff --git a/openbsc/tests/db/Makefile.am b/openbsc/tests/db/Makefile.am
index 7439ed6..785aff0 100644
--- a/openbsc/tests/db/Makefile.am
+++ b/openbsc/tests/db/Makefile.am
@@ -13,5 +13,5 @@
$(top_builddir)/src/libtrau/libtrau.a \
$(top_builddir)/src/libcommon/libcommon.a \
$(LIBOSMOCORE_LIBS) $(LIBOSMOABIS_LIBS) \
- $(LIBOSMOGSM_LIBS) $(LIBSMPP34_LIBS) -ldl -ldbi
+ $(LIBOSMOGSM_LIBS) $(LIBSMPP34_LIBS) $(LIBOSMOVTY_LIBS) -ldl -ldbi