serial: sandbox: Implement puts
This implements puts for sandbox. It is fairly straightforward, except
that we break out the shared color printing functionality into its own
function.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 286c998..6b189f8 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -779,6 +779,7 @@
config SANDBOX_SERIAL
bool "Sandbox UART support"
depends on SANDBOX
+ imply SERIAL_PUTS
help
Select this to enable a seral UART for sandbox. This is required to
operate correctly, otherwise you will see no serial output from