[PATCH] [POWERPC] i2c: fix build breakage introduced by OF helpers

[Paul Mackerras]

Jean Delvare writes:

> Guys, you're doing things the wrong way around. Breaking things to fix
> them later is not OK, it's a pain for testers and also when bisecting
> the kernel. Everything should still work after merging the powerpc
> tree. Dave, if you need to loosen the dependency, you should do it
> yourself _after_ having changed whatever needs to be in the sparc32 and
> sparc64 trees so that loosening the dependency doesn't break anything.
> As far as I can see it's only a matter of changing one line in a
> Kconfig file, that's not exactly difficult to do it in the right order.

You're right.  I'll put in a dependency on PPC_OF for now and Dave can
take it out once sparc32/64 have irq_of_parse_and_map etc.

Paul.