siemens: avoid out of bound access

char num[1];
	sprintf(num, "%d", i);

leads to a buffer overrun.

Simplify the overly complex coding.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Heiko Schocher <hs@denx.de>
1 file changed