From f09bc831b7693f93ecb95dea7180d55b45b88e76 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Mon, 4 Jul 2011 09:01:18 +0800
Subject: [PATCH] dt: add 'const' for of_property_read_string parameter
 **out_string

The existing dt codes usually call of_get_property to get a string
property and save it as a 'const char *'.  The patch adds'const' for
of_property_read_string parameter **out_string to make the converting
of existing code a little easier.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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