[U-Boot] [PATCH 11/15] serial: sandbox: Allow serial output without device tree

[sjg at google.com]

At present sandbox assumes that device-tree control is active, but this
may not be the case in SPL or TPL. Add some conditions to handle this.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/serial/sandbox.c | 5 +++++
 1 file changed, 5 insertions(+)

Applied to u-boot-dm