[U-Boot] efi_loader: Always flush in cache line size granularity

[Tom Rini]

On Mon, Apr 11, 2016 at 11:20:39PM +0200, Alexander Graf wrote:

> The cache line flush helpers only work properly when they get aligned
> start and end addresses. Round our flush range to cache line size. It's
> safe because we're guaranteed to flush within a single page which has the
> same cache attributes.
> 
> Reported-by: Marek Vasut <marex at denx.de>
> Signed-off-by: Alexander Graf <agraf at suse.de>
> Reviewed-by: Andreas Färber <afaerber at suse.de>
> Tested-by: Andreas Färber <afaerber at suse.de>

Applied to u-boot/master, thanks!

-- 
Tom
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