ARM: configs: sunxi: Run savedefconfig

We haven't run savedefconfig for a while and some options have moved
around. In order to ease the patch application / conflict resolution, let's
run it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20200705091904.42795-1-maxime@cerno.tech