[U-Boot] pxe: fix handling of absolute paths

[Tom Rini]

On Fri, Oct 18, 2013 at 01:04:42PM -0500, Rob Herring wrote:

> From: Rob Herring <rob.herring at calxeda.com>
> 
> pxelinux and syslinux differ in their handling of absolute paths in menu
> files. A pxelinux path is aways prepended with the bootfile path while
> syslinux allows for absolute paths. u-boot was always treating a leading
> / as an absolute path breaking some pxelinux setups. Fix this by adding
> a flag to distinguish pxelinux vs. syslinux behavior.
> 
> Reported-by: Ian Campbell <Ian.Campbell at citrix.com>
> Signed-off-by: Rob Herring <rob.herring at calxeda.com>

Applied to u-boot/master, thanks!

-- 
Tom
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