[U-Boot] [PATCH v2] mtd: resync with Linux-3.7.1

[Sergey Lapin]

Dear Scott,

> could you please test the following patch
> on top of this big patch to see if ecc.strength
> problem goes away? I can integrate it into big
> one then.
> 
> >From dffea1f073c546ab88f37f219f66d9d1478d4cf1 Mon Sep 17 00:00:00 2001
> From: Sergey Lapin <slapin at ossfans.org>
> Date: Thu, 17 Jan 2013 18:29:21 +0400
> Subject: [PATCH] SQUASHME: mtd: nand: Add ecc.strength support to drivers
Updated the patch according to Josh's request: