net: kunit: add a test for dev_addr_lists

Add a KUnit test for the dev_addr API.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/Kconfig b/net/Kconfig
index 074472d..8a1f9d02 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -455,4 +455,9 @@
 	  netlink. It provides better extensibility and some new features,
 	  e.g. notification messages.
 
+config NETDEV_ADDR_LIST_TEST
+	tristate "Unit tests for device address list"
+	default KUNIT_ALL_TESTS
+	depends on KUNIT
+
 endif   # if NET