nixio: Use correct datatypes for base64 encode
nixio: Use correct datatypes for base64 encode

8devices/luci,deepak78/luci,deepak78/luci,8devices/luci,deepak78/luci,deepak78/luci,deepak78/luci,8devices/luci,deepak78/luci,8devices/luci,deepak78/luci,8devices/luci,8devices/luci,deepak78/luci