uboot-phytec

x86: qemu: do not build car.o with start64.o

car.o can only be used with start.o, not with start64.o.

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