[coreboot] Patch merged into coreboot/master: 33a8fab ChromeOS: add missing string.h in gnvs.c

the following patch was just integrated into master:
commit 33a8fabdf07f07531b8ef2e3d88e95836acacaae
Author: Stefan Reinauer 
Date:   Fri Apr 27 00:48:58 2012 +0200

ChromeOS: add missing string.h in gnvs.c

string.h is required to build with the reference toolchain.

Change-Id: I9fd8d2ea8fc676d3502989cbcc7aefe3b2d738b6
    Signed-off-by: Stefan Reinauer

Build-Tested: build bot (Jenkins) at Fri Apr 27 03:06:05 2012, giving +1
See http://review.coreboot.org/935 for details.

-gerrit