[RFC PATCH v2 2/6] powerpc: wii: bootwrapper bits

[Segher Boessenkool]

> Add support for the Nintendo Wii video game console to the powerpc
> bootwrapper.
>
> dtbImage.wii is a wrapped image that contains a flat device tree,
> an entry point compatible with the Homebrew Channel and BootMii,
> and an optional initrd.
>
> Signed-off-by: Albert Herranz <albert_herranz at yahoo.es>
Acked-by: Segher Boessenkool <segher at kernel.crashing.org>