[PATCH] powerpc: only build idle_6xx for 6xx

[Paul Mackerras]

Kumar Gala writes:

> For the current time idle_6xx only applies to 6xx ppc32 CPUs

> +extra-$(CONFIG_6xx)		+= idle_6xx.o

> -obj-$(CONFIG_PPC32)		+= entry_32.o idle_6xx.o setup_32.o misc_32.o
> +obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o misc_32.o

Why does idle_6xx.o become an extra- rather than an obj- ?

Paul.