ARM: configs: sunxi: Add sun8i analog codec

On my orange pi PC, I got lot of "sun4i-codec 1c22c00.codec: Failed to register our card".
This was due to a missing component: the sun8i analog codec.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>