Trackpoint speed and sensitivity tweek

Addd following line to /etc/rc.local

## Trackpoint speed and sensitivity tweek, echo number 0-255 to sysfs
echo -n 120 > /sys/devices/platform/i8042/serio1/speed
echo -n 220 > /sys/devices/platform/i8042/serio1/sensitivity

一晃神，半年多沒更新這裡了。