system/cfg/misc.cfg

{
    "services" : [{
            "name" : "misc",
            "path" : ["/system/bin/misc_daemon", "--write_logo", "/vendor/logo.rgb"],
            "once" : 1,
            "uid" : "root",
            "gid" : ["root", "update"],
            "secon" : "u:r:misc:s0"
        }
    ]
}