[U-Boot] [U-Boot,v2] stm32f4: add serial print port

[kunhuauang]

Hi~

Sorry about the mistake of this patch.
This patch has already include "[PATCH v2] stm32f4: fix serial output".
If adopt this patch, patch "[PATCH v2] stm32f4: fix serial output" need
to be discarded.


On Sun, May 10, 2015 at 10:08:45AM -0400, Tom Rini wrote:
> On Tue, Apr 28, 2015 at 03:01:19AM +0800, kunhuahuang wrote:
> 
> > Add the stm32F4 board's serial ports support.
> > User can use it easily.
> > The user only need to edit the number of the usart.
> > The patch also fix the serial print out.
> > 
> > Last, this version of patch fix the first patch checkpatch.pl error.
> > Thanks to Kamil Lulko.
> > 
> > Signed-off-by: kunhuahuang <huangkunhua at gmail.com>
> 
> Applied to u-boot/master, thanks!
> 
> -- 
> Tom

Thanks.