[U-Boot] [U-Boot,v2] powerpc/pixis: Fix pixis help message

[Andy Fleming]

On Fri, May 31, 2013 at 08:48:04AM -0700, York Sun wrote:
> "pixis_reset help" command prints the message without a new line "\n",
> which makes the prompt on the same line.
> 
> Signed-off-by: York Sun <yorksun at freescale.com>

Applied, thanks!

Andy