test: cmd: Use UTF_CONSOLE in tests

Set this flag rather than doing things manually in the test.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd/pinmux.c b/test/cmd/pinmux.c
index 0b4e001..7ee9269 100644
--- a/test/cmd/pinmux.c
+++ b/test/cmd/pinmux.c
@@ -36,4 +36,5 @@
 
 	return 0;
 }
-DM_TEST(dm_test_cmd_pinmux_status_pinname, UTF_SCAN_PDATA | UTF_SCAN_FDT);
+DM_TEST(dm_test_cmd_pinmux_status_pinname, UTF_SCAN_PDATA | UTF_SCAN_FDT |
+	UTF_CONSOLE);