This performs the opposite of nand_register, allowing drivers to unregister
nand devices. This is probably unnecessary for most regular drivers, but we
expect sandbox drivers to get repeatedly bound/unbound, so this will help
avoid dangling pointers.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
c203482177