[PATCH] sunxi: Fix typo in include guard

[Sam Edwards]

On 5/15/23 03:48, Andre Przywara wrote:

Ahoy, Andre!

 > How did you find this? Just by accident? I was wondering if we could
 > check the tree automatically for those accidents.

I found it both automatically and by accident. :)

My cross-compiler of choice is Clang (as I don't have to 
rebuild/reinstall it for each target) and its enabled-by-default 
-Wheader-guard diagnostic flagged that for me.

Regards,
Sam