boards: amlogic: add KII Pro defconfig

Add configurations for the Videostrong KII Pro set-top box.
This defconfig is cloned from the WeTek Play2's.

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>
Link: https://lore.kernel.org/r/20230507124109.31778-3-vitali64pmemail@protonmail.com


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>