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

[Paul Mackerras]

Kumar Gala writes:

> We no longer have any dependancies on include/asm-ppc so we can get ride
> of the makefile hacks to include it in the build process.

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.

Paul.