fix critical mdelay/udelay timer problem
fix critical mdelay/udelay timer problem

xndcn/moboot-for-veer,jcsullins/moboot,jcsullins/moboot,jcsullins/moboot,xndcn/moboot-for-veer,xndcn/moboot-for-veer,jcsullins/moboot,xndcn/moboot-for-veer,xndcn/moboot-for-veer,jcsullins/moboot,jcsullins/moboot