x86: rename setup.c to setup_percpu.c

obj-y			:= process_$(BITS).o signal_$(BITS).o entry_$(BITS).o

obj-y			+= traps_$(BITS).o irq_$(BITS).o

obj-y			+= time_$(BITS).o ioport.o ldt.o

obj-y			+= setup_$(BITS).o i8259.o irqinit_$(BITS).o setup.o

obj-y			+= setup_$(BITS).o i8259.o irqinit_$(BITS).o setup_percpu.o

obj-$(CONFIG_X86_32)	+= probe_roms_32.o

obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o

obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o