fix default logging levels to NOTICE, not DEBUG

Tweak unit test binaries to still used DEBUG loglevels, so that their expected
outputs remain unchanged (and nicely verbose).

Adjust test_nodes.vty, now expecting the 'notice' log levels upon
'show running-config'.

Change-Id: Ic061e61c9625b49cef8bc2a2c0b936e262c22268
diff --git a/tests/auc/auc_test.c b/tests/auc/auc_test.c
index f047a97..e9c114c 100644
--- a/tests/auc/auc_test.c
+++ b/tests/auc/auc_test.c
@@ -615,6 +615,7 @@
 	log_set_print_timestamp(osmo_stderr_target, 0);
 	log_set_use_color(osmo_stderr_target, 0);
 	log_set_print_category(osmo_stderr_target, 1);
+	log_parse_category_mask(osmo_stderr_target, "DMAIN,1:DDB,1:DAUC,1");
 
 	test_gen_vectors_2g_only();
 	test_gen_vectors_2g_plus_3g();