We need either all architectures changed or none at all - we do need the 
arch headers to become more similar, not more different.

And this is why we need an agreement _before_ an asm-generic header gets 
added, not after it.

We already have the agreement..
Files which are equal among archs should be in asm-generic.
And there is simply no gain in adding files for an arch when can put
them in asm-generic.
When they are in asm-generic than we can fix the other archs one-by-one.

	Sam