The redundant character '0x0a' after the 192 bytes '0x00' padding broke
the factory image. We need to remove it to make things work again.
Fixes: e6769d11f3 scripts: fix missing character '0' issue in linksys image
Tested-by: Tony Butler <spudz76@gmail.com>
Signed-off-by: Shiji Yang <yangshiji66@qq.com>