video console: sandbox: add 12x22 font defconfigs

Add 12x22 font in order to write a test for it.

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 77ade1f..a0fbdad 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -298,6 +298,7 @@
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
 CONFIG_VIDEO=y
+CONFIG_VIDEO_FONT_SUN12X22=y
 CONFIG_VIDEO_COPY=y
 CONFIG_CONSOLE_ROTATION=y
 CONFIG_CONSOLE_TRUETYPE=y