res/osd::update the NumLockOff NumLockOn image

Change-Id: Ia6cdbee53b514b451917385e2f90293b69263aa2
tower:https://tower.im/projects/8f19f0bf0e754f0b82ef2c24bc230973/todos/c2c14dc073344abfb1168473f3d092b4/