serial: Do not write additional \r before \n for dm_serial drivers

serial-uclass.c code already puts \r before \n for all dm_serial drivers.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2 files changed