tests/logging: ensure both stream and wqueue modes are tested

Change-Id: I37e789b5b287d72c443f50fd99a5284bc7296c0b
diff --git a/tests/logging/logging_test.c b/tests/logging/logging_test.c
index ac6fc52..12a7374 100644
--- a/tests/logging/logging_test.c
+++ b/tests/logging/logging_test.c
@@ -78,6 +78,11 @@
 	log_set_print_category(stderr_target, 1);
 	log_set_use_color(stderr_target, 0);
 
+	if (argc > 1 && !strcmp(argv[1], "wqueue"))
+		log_target_file_switch_to_wqueue(stderr_target);
+	else
+		log_target_file_switch_to_stream(stderr_target);
+
 	log_parse_category_mask(stderr_target, "DRLL:DCC");
 	log_parse_category_mask(stderr_target, "DRLL");