x86: Fix member check in intel_gnvs

When CONFIG_CHROMEOS is not enabled this currently does not build. Fix it.

Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
1 file changed