The "reserved" partition should probably be read-only, just in case. Even
not knowing it's content, other devices have marked it as such, so it
seems a good idea to do so also for this device.
Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
CC: Mathias Kresin <dev@kresin.me>
CC: Hanqing Wong <hquu@outlook.com>
