Disable linux logo

Change-Id: I981be95c46c330878777e0ddf0361a67157ab6e7
Signed-off-by: Jianmin Zhou <toandrew@infthink.com>
Support LEDs

Add two leds to blink different colors when device is in different status(normal or recovery mode,etc)

Change-Id: I22e7dcc8673a45a4d2d800de7253ef9be665b83e
Signed-off-by: Jianmin Zhou <toandrew@infthink.com>