[PATCH 3/3 v2][POWERPC] Stop include asm-ppc when building ARCH=powerpc for ppc32

[Paul Mackerras]

I wrote:

> On 32-bit powermac, I get:
> 
>   CC [M]  drivers/macintosh/ans-lcd.o
> /home/paulus/kernel/powerpc/drivers/macintosh/ans-lcd.c:17:25: error: asm/ans-lcd.h: No such file or directory
> 
> plus a whole pile of things undefined after that.

And on mpc7448_hpc2 I get

  CC      arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.o
In file included from /home/paulus/kernel/powerpc/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c:43:
/home/paulus/kernel/powerpc/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.h:19:25: error: asm/ppcboot.h: No such file or directory

Paul.