[U-Boot] spl: Change printf to puts for "Unsupported boot-device"

[Tom Rini]

On Tue, Jan 27, 2015 at 04:45:09PM +0100, Stefan Roese wrote:

> Microblaze currently doesn't use printf in SPL. So this one line was the only
> reference to it and resulted in the printf functionality to be pulled in.
> Exceeding the 4k size limit. Lets change the printf back to puts so that
> Microblaze is fixed again. The only drawback is that the detected boot-device
> number will not be printed. But this message alone should be helpful enough
> to get an idea where the boot process is broken.
> 
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Tom Rini <trini at ti.com>
> Cc: Michal Simek <michal.simek at xilinx.com>
> Acked-by: Michal Simek <michal.simek at xilinx.com>

Applied to u-boot/master, thanks!

-- 
Tom
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