ar71xx/generic: enable Zyxel NBG6616 in kernel config again
The NBG6616 shares a config symbol with the NBG6716. It was accidentally
removed from the config when the ar71xx-tiny target was split off.
Fixes: 0cd5e85e7ad6 ("ar71xx: create new ar71xx/tiny subtarget for 4MB flash devices")
Signed-off-by: Matthias Schiffer <[email protected]>
Matthias Schiffer