Patch merged into coreboot/master: util/kconfig: Remove utsname for mingw

the following patch was just integrated into master:
commit d38b22f8ec547296e569964279362f13c1ee598c
Author: zbao 
Date:   Sat Sep 26 06:22:11 2015 -0400

util/kconfig: Remove utsname for mingw

Mingw doesn't have that this function.

Change-Id: I640ea61ff24fba812e3f10771dd7e468dcfc63dd
    Signed-off-by: Zheng Bao 
    Signed-off-by: Zheng Bao 
    Reviewed-on: https://review.coreboot.org/11724
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/11724 for details.

-gerrit