velia: bring in the netlink library for ietf-interfaces

Change-Id: I07c300ea8ea4525da1ef4bb9a23c211b0301642a
diff --git a/package/velia/Config.in b/package/velia/Config.in
index 99d85e1..f444cc8 100644
--- a/package/velia/Config.in
+++ b/package/velia/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_VELIA
 	bool "velia"
 	select BR2_PACKAGE_DOCOPT_CPP
+	select BR2_PACKAGE_LIBNL
 	select BR2_PACKAGE_SPDLOG
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_SDBUS_CPP