The condition here was incorrect: a non-neon fallback implementation is
available on arm32 when NEON is not supported.
Reported-by: NIlya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Fixes: e7096c13 ("net: WireGuard secure network tunnel")
Signed-off-by: NJason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>