test: font: Add dependencies on fonts

The font test needs two fonts. If one is not available, skip out early,
to avoid an error.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd/font.c b/test/cmd/font.c
index 40682e5..1fe05c1 100644
--- a/test/cmd/font.c
+++ b/test/cmd/font.c
@@ -30,13 +30,17 @@
 	ut_assertok(console_record_reset_enable());
 	ut_assertok(run_command("font list", 0));
 	ut_assert_nextline("nimbus_sans_l_regular");
-	ut_assert_nextline("cantoraone_regular");
+	if (IS_ENABLED(CONFIG_CONSOLE_TRUETYPE_CANTORAONE))
+		ut_assert_nextline("cantoraone_regular");
 	ut_assertok(ut_check_console_end(uts));
 
 	ut_assertok(vidconsole_get_font_size(dev, &name, &size));
 	ut_asserteq_str("nimbus_sans_l_regular", name);
 	ut_asserteq(18, size);
 
+	if (!IS_ENABLED(CONFIG_CONSOLE_TRUETYPE_CANTORAONE))
+		return 0;
+
 	max_metrics = 1;
 	if (IS_ENABLED(CONFIG_CONSOLE_TRUETYPE))
 		max_metrics = IF_ENABLED_INT(CONFIG_CONSOLE_TRUETYPE,