Add a 'chosen' node to select the serial console.
This is needed when bootloaders do not pass the
'console=' bootargs.
Acked-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NSricharan R <sricharan@codeaurora.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>